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simjaexy · 22 days

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𝙊𝙪𝙧 𝙇𝙞𝙩𝙩𝙡𝙚 𝙎𝙚𝙘𝙧𝙚𝙩 𝙎.𝙅

pairing ⇀ professor! sim jaeyun x (f) student! reader

synopsis ⇀ you always knew your professor was attractive, so it wasn’t new when girls would try to gain his attention. what you didn’t know though was that he only had his eyes on you. what comes as a friendly teacher-student relationship takes a turn when you find yourself thinking differently about him with your private lessons together.

genre ⇀ smut, angst

warnings ⇀ MINORS DNI!, lower case intended, four year age gap (jake is 22 and reader is 18), tons of jealousy, cursing, jake is obsessed with oblivious reader, dom! jaeyun x sub! reader, name calling (slut, whore, and etc.), (f) receiving, pussy eating, unprotected sex, cum eating, choking, multiple orgasms

w.c ⇀ 5.4k

a/n ⇀ i don’t know why but this was and on and off fic i was doing cause i didn’t really like but i’m glad i finally finished it. i can’t tell if this was good or not because i was stressing on how to put the ending so bear with me on that. reblog, like, comment, etc.! lmk if i missed any warnings! not proofread.

masterlist here

the first time you saw professor sim was during the orientation week. you were a freshman, nervous and excited about starting your journey in college. the campus was bustling with activity, and you were trying to find your way to the science building for your first lecture.

as you walked through the crowded hallway, you accidentally bumped into someone, "oh, I'm so sorry!" you exclaimed, looking up to see a tall man with a kind smile.

"no worries at all," he replied, adjusting his glasses. "are you lost?"

"uh, yeah, actually. I'm trying to find the science building," you admitted, feeling a bit embarrassed.

"you're in luck. I'm heading there myself. i’m professor sim, by the way," he said, extending his hand.

you shook his hand, feeling a bit more at ease. "nice to meet you, professor sim. i’m l/n y/n.”

"well, y/n, follow me. i'll show you the way," he said, leading you through the maze of hallways. as you walked, you noticed his broad back through his suit. the suit fitting perfectly on him. you blushed watching him strut confidently past students and teachers watching him walk past.

you definitely won’t lie and say he’s not handsome. his glasses framing his face perfectly. you never knew you would like guys with glasses. he suddenly asked about your interests and what drew you to study science. his genuine interest in your answers made you feel welcome.

fast forward to the present, you were now in your second semester, and professor sim class had quickly become your favorite. his enthusiasm for science was infectious, and he had a knack for making even the most complex topics seem approachable. however, the latest homework assignment was proving to be a real challenge.

as you packed your notebooks and computer you saw a girl bluntly flirting with him. batting her eyelashes at him. it wasn’t new seeing different girls trying to talk to him, purposely saying they need help just to see him up close. you cleared your throat you gathered your courage and approached his desk. "professor sim, could I ask for some help with the homework? i’m really struggling with the concepts."

he looked up at you, a warm smile spreading across his face, completely ignoring the other girl in front of him. he probably knew what she was trying to do, "of course, i'd be happy to help. why don't you come by my office later this afternoon?"

the girl huffed at her non existence and walked away, leaving the both of you alone. you nodded, feeling a wave of relief.

later that day, you found yourself sitting across from him in his office. the room was filled with books and scientific models, and the faint smell of coffee lingered in the air.

"alright," he said, pulling up a chair next to you, "let's take a look at what you're having trouble with."

you pulled out your notebook, showing him the problems that had been giving you headaches. he patiently explained each step, breaking down the complex ideas into simpler terms. his explanations were clear and concise, and he used analogies that made the material more relatable.

"see? you're getting the hang of it," he encouraged, his eyes twinkling with pride. "sometimes all it takes is a different perspective."

as you worked through the problems together, you found yourself gaining a deeper understanding of the subject. you also couldn’t help but look at his side profile, his plump soft lips moving with passion for science was evident in every word he spoke, and it was impossible not to be inspired by his enthusiasm.

"thank you so much, professor jake," you said sincerely as you packed up your things. "i really appreciate your help."

"anytime, y/n. don't hesitate to reach out if you need more assistance," he replied with a smile.

you gave him another smile. you left his office feeling more confident and grateful for his guidance. professor sim had not only made the subject more accessible but had also shown you that with the right support, you could tackle even the toughest challenges.

over the next few weeks, you continued to visit his office for help, and each time, you left with a better understanding of the material. his encouragement and patience made all the difference, and you began to see science in a whole new light.

even though you guys only talked about science and just science, you couldn’t help but notice when sim would ask you questions outside of science. like ‘what do you think about your teachers?’ or ‘who’s your favorite teacher so far?’, and each time he’d ask, you would always say him.

one afternoon, as you were wrapping up another productive session, he asked, "so, y/n, have you thought about what you want to do after college?"

you paused, considering his question. it was new for him to ask that, "i'm not entirely sure yet. i know i want to do something in science, but I haven't decided on a specific path."

"that's perfectly fine," he said reassuringly. "you have plenty of time to figure it out. just remember to follow your passion and stay curious. the rest will fall into place."

you smiled, feeling a sense of reassurance, “thank you professor sim. i really appreciate that.”

you watch him push his hair back with a smile. you felt your heart skip a beat and immediately looked away, “i-i think i should get going. it’s getting pretty late.”

“you don’t need a ride do you? it’s pretty dark out since we practiced a bit longer than usual.” he reasoned. you thought for a moment. it is dark out and you don’t know who’s outside at this time. so, you nodded your head.

“great. i’ll tidy up before we go.” he said. you watched him put a few books away and tidying up his desk for tomorrow before grabbing his keys from his drawer. he then walked you to the door.

you both left the college and went to the parking lot. you felt yourself feeling nervous. it was your first time going with sim anywhere but his class. he went to a mercedes car making you hum in acknowledgement.

he chuckled at your reaction, “like it?” he teased. you nodded your head and giggled.

“i don’t really know cars that well, but i just know this one is expensive.” you said. his laugh causing a stir in your stomach.

you both entered the car and buckled up. he backed from the parking lot, “do you live on campus or somewhere else?” he asked.

“i live on campus, but the other one.” you spoke.

“you live pretty far? you walk here?” he murmured. he gazed at you curiously.

you chuckled, “it’s a good walk. i wake up a bit earlier so i’m not late for your class.”

he smiled at you, “if i would’ve known you go that far i’d spare you.” you shook your head and smiled back.

the car ride was silent, you let out a sigh and lay your head on the window. the past few days you haven’t been getting much sleep. you felt your eyes get a bit heavy.

“tired?” sim questioned. you opened your eyes back up and nodded.

“a little. sorry, haven’t really got much sleep. i’ve been so stressed out that i couldn’t sleep.” you joked, but it wasn’t really a joke.

sim hummed, he understood how tiring college could be, “you can take a nap. i mean if you want too. i’ll wake you up when we’re at the campus.” he said.

you smiled gratefully. soon your eyes became heavy and that’s when you fell asleep. your soft breathing soon filling the silence.

jake looked at your sleeping figure. you really were the prettiest student he’s ever seen. he knows it’s wrong to think of you like that. you’re supposed to be just a student to him, but he can’t help but think of something more.

your smile that makes him feel a type of way inside. your pretty laugh that he can’t help but adore. those thoughts were just something he thought weren’t bad, but his other thoughts were a bit more mature.

the way your outfits fit your body perfectly. your breast sitting perfectly in your bra, jiggling when you walk towards him. it’s hard for him not to get rock hard and stare. your fingers so pretty to him that he wonders if they're just as pretty inside your pussy. your glossy lips so pretty when they pout, he wonders what they would feel like around his dick. he just knows they’d stretch so pretty.

he soon parks the car in front of the campus. he shakes you softly, “y/n. we’re here.”

you groaned and turned away from him. he tried shaking you awake again, but you didn’t budge. he sighed and looked around. maybe he could just pick you up and take you to your dorm. that wouldn’t be weird right?

he got off his car and went to your side, opening the car door. he grabbed your backpack and slung it over his shoulder. he unbuckled your seatbelt and picked you up swiftly. he was hoping no one was awake at this time. he opened the door with his free hand and entered the building.

as soon as he unlocked your door he set you down on your bed with your bag on the chair. he couldn’t help but curiously look around. your room filled with collage photos of you and your friends. there was a photo of you and your parents. he slowly picked up the photo and smiled. you looked happy unlike the times you were in the halls.

he set it back down and was about to head out until he heard you making a noise, “sim please. down there.” you moaned out.

jake paused his walking and looked back at you. you were still sleeping, but your breathing started to become uneven and heavy. wait, were you having a dream about him?

he slowly prodded towards you and slightly shook you. you really were a deep sleeper. just then you let out another noise. it sounded like a whimper.

“fuck me sim.” you whispered.

what. the. fuck.

jake nearly choked on his spit. there was no way you talk this clearly in your sleep. were you joking with him? his breathing became unsteady with the uncomfortable feeling between his legs. he cursed at himself for still standing here and quickly left. locking the door on the way out.

he would just pretend he never heard you.

he couldn’t pretend. the whole day he was thinking about what you said last night. with him having to solve his little problem himself. you acted normally the way you did. you remembered he took you back to your campus cause you thanked him first thing when you saw him. if only he didn’t make it seem awkward.

you on the other hand was confused why professor sim was acting strange. were you snoring really loud in his car? you really hoped you didn’t.

as class came to an end, you packed your stuff. as you were packing you couldn’t help but look over at professor sim. your eyes went wide when you saw him talking to another female teacher. you didn’t even notice she came in.

they seem to be chatting about something funny cause sim was laughing a lot to what she was saying. you felt a weird feeling in your chest that you couldn’t describes. was it jealousy?

you sighed and put your bag over your shoulder and left the class without sparing another look. as you were walking you suddenly heard your name being called. you turn around expecting a specific person, but you saw that it was riki.

you gave him a fake smile, “hey riki.” you said. riki smiled once he caught up to you.

“are you okay? i tried texting you last night but you didn’t answer.” he asked. you pushed your hair behind your ear suddenly remembering last night again.

“o-oh i came home pretty early and fell asleep. did you need to talk about something?” you spoke.

riki nodded, “actually i was gonna talk to you about the project-“ “y/n.”

your eyebrows furrowed and looked behind riki, only to see none other than professor sim. he came closer to you guys, “you guys should head to class or you’ll be late, especially you mr. nishimura.”

the tone in professor sim kinda intimidated you. his voice bitter and sharp towards riki. riki nervously nodded his head and gave you a tight smile before walking past you. you looked at professor sim only to see him looking at you.

“did you need something professor sim?” you mumbled, feeling small under his strong gaze.

“don’t waste your time talking to guys and focus on your classes.” he suddenly said. his voice coming more harsh than he intended. your eyebrows furrowed felling a bit offended.

“excuse me?” you said “you should know i don’t waste my time on guys. riki isn’t just any guy, he’s my friend.”

before jake could say something you walked away. jake sighed and pushed his hair back. he didn’t mean to come out like that. he couldn’t shake that feeling of jealousy when he saw how close riki was to you. he’d have to apologize later.

you sighed when your last class finally finished. you were supposed to have your tutoring lesson with sim, but after that incident you don’t think you could go. you’ll just email him saying you’re sick. you left the college and walked to your campus.

you listened to a few playlists while walking. the cool breeze with the sunny sky made you feel relaxed. once you came to your campus you said hi to the lady up front and went to your room. you set your bag on the floor and sighed. a shower sounds good. before you went in the shower you emailed sim about your canc and shut your computer.

you took a quick shower and finished up. you wrapped a robe around your body and dried your hair with a towel, but before you could grab your phone you heard a knock at your door. you frowned, nobody barely knocks on your door, so who could it be. you opened the door and your eyes widened in surprise. it was sim.

“professor sim? what are you-“ “are you that mad at me?” he cut you off. you closed your mouth. is that why he came all the way here?

“professor sim im not mad-“ “so why are you ignoring me?” he said. you didn’t know it mattered that much to him.

“i-i’m sorry. i didn’t mean to cancel last minute.” you said. maybe that’s why he was upset. he doesn’t like when people cancel stuff last minute. he shook his head.

“i’m not mad if that’s what you’re thinking. i’m asking if you’re mad about what i did earlier.” he admitted. oh. that’s what he was talking about. to be honest you don’t know if you were really mad anymore. so, you shook your head.

“it’s okay. i’m sorry for being rude.” you muttered.

“i should say sorry too. i know you don’t do any of those things. i was just in a bad mood.” he said. was he really in a bad mood if he was talking to that female teacher happily?

you gave him a fake smile, “it’s okay professor sim. was that all you came here for.”

just as he was about to say something, he averted his gaze down and noticed you were in a robe. he felt his face burning and looked back up at you, “o-oh i’m sorry. did i interrupt your bathing time?” he stuttered.

“huh?”

you looked down and also noticed you were still in your robe. you gasped and moved the door in front of you, “i’m sorry!”

he tried shaking his head, but you just kept apologizing, “no it’s fine really! it’s my fault.”

you stopped apologizing and stared at him, awkwardness filling the air. he cleared his throat and looked back at you, “i-i’ll get going-“

“wait. i know this might sound weird, but do you wanna come in for a moment? we can do the lesson here if you're still up for it.” you thought. jake pondered for a moment before nodding.

you got done getting dress in your bathroom and came out. you saw sim sitting on the floor with textbooks on the wooden table you had in the middle of your room. he was looking around your room before staring at you.

you smiled at him and sat next to him, “we can start where we left off yesterday if that’s fine.” you said. he nodded and flipped the page to where you guys left off.

as you he taught you easy ways to get the answer, you felt yourself getting distracted once again by his visuals. you didn’t know what you were feeling at this point, it was a feeling you hated, but wanted to know more about. all of a sudden sim looked at you. you felt your breath get caught in your throat. he was staring at you with a questionable linger in his eyes. you felt his breath against your face. you guys were so close that if you moved a step your lips would touch.

“sim-“ “push me away if you don’t want this.” was all he said when you suddenly felt lips on yours.

you gasped and held tightly on his shirt. his lips molding against yours perfectly. you moaned when you felt his hand grip your ass, making him have access to enter his tongue. you felt your room getting hot as you lay on the ground with sim on top of you.

you took off his jacket while he helped you take it off without breaking the kiss. the dim lighting of your fairy lights making it seem darker than usual. he took off your shorts, only leaving your underwear on. he kissed and sucked along your jawline to your chest, kissing it gently. the sexual tension you guys had finally snapping in him. he lifted your shirt up and unclasped your bra. you felt the cold air hit your nipples and made a noise.

he smirked against your chest before gripping one breast and sucking the other. you let out a moan and gripped his locks. he groaned and pinched your nipple making you jerk.

“sim.” you whimpered. he looked up at you and departed from your breast.

he started unbuttoning his long sleeve button up, “call me jake.” he said. you bit your lip when you finally saw his toned body. god if you would’ve known he had that body under his suit you would’ve made a move sooner.

he leaned back down and kissed you gently, biting your lip making you sigh. you felt his right hand slowly going down until it made contact with your cloth pussy. you threw your head back when you suddenly felt him rub your folds up and down.

he dipped his hand in a second later and confused rubbing your folds, “fuck you’re so wet.” he murmured.

you nodded and kissed him again. both of your lips swollen. you wouldn’t want it any other way though. he took his fingers away and put them in his mouth. you watched intensely as he smirked at you. he got up and lifted you up bridal style before putting you on your bed. he unbuckled his pants and pulled them down revealing his boxers.

you gasp at the outline of his dick. you know it’s big. he got on top of you again and slid down your underwear. you felt yourself blushing with how he stared. you felt the urge to close your legs but before you could jake dipped his head down to your pussy.

“j-jake wait.” you moaned when you suddenly felt his hot tongue lick your folds.

he groaned as you gripped his hair again. he licked your folds again but this time he sucked on your clit. you thrash around at the new feeling as your eyes rolled back.

the sound of wet slurping noises was the only thing heard in your room. jake couldn’t get enough of your pussy. he was a completely pussy drunk man at this moment. your sweet juices leaking out, he knows you love it just as much as he does.

you felt a tight feeling in your pussy and patted his head, “j-jake m’gonna cum!” you cried out. he didn’t stop making you feel your climax coming. you let out one last moan before your orgasm finally hit. your legs shaking on the side of his head. he drummed up your cum like he was a dehydrated man.

you panted harshly and whined when he finally pulled away. he licked the rest on his chin, “fuck, you taste so good.” he says. he pulls his boxers down and that’s when you finally saw his dick. it was veiny and hard, precum at the tip.

“do you need to be prepped?” he said. you shook your head. you needed his dick in you now.

he positioned himself at your entrance before slowly pushing in. he groaned while you whimpered and held him tightly. he hissed when he felt you scratching at his back. slowly, he backed up and pushed back in so you could get used to the feeling.

a few minutes later you felt a pleasure tingling in your body, “j-jake faster. please.”

he didn’t need to be told twice. he started going at a faster pace and that’s when you were out of it. his tip hitting your g-spot.

“yes! right there! oh fuck!” you cried out. the sound of skin slapping, panting, and bed creaking was heard. you had a feeling people could hear you, but you could care less. especially with the way jake was fucking you.

he gripped your neck with a free hand, “such a little whore for dick. gonna be a good bitch for me?” he rasped out. you nodded your head frantically.

he felt you squeeze his dick and moaned. your pussy was a match made in heaven just for him.

you felt another orgasm coming and arched your back. he gripped your hips and snapped his hips harder. your orgasm hit you hard and you saw white. jake snapped his hips three more times before pulling his dick out, stroking himself on your stomach before cumming.

both of you panted uneven and hard. he got off your bed and grabbed the towel you used for your hair and wiped your stomach and wiped your pussy. you whined from sensitivity.

he grabbed another pair of pajamas for you and helped your put them on.

he put the towel in your dirty basket and went back to you, pushing your hair back, “i should get going.” he said.

you pouted, “do you have to leave?”

jake hated that he did, but he can’t get caught with his own student, “it’s for the better. you’ll see me tomorrow.”

you finally nodded your head. he covered you with your blanket and kissed your head, “goodnight beautiful.” he whispered. you soon dozed off into dreamland.

jake got dressed and looked at you one last time before shutting your door with a soft click.

you groaned feeling an ach in your body. you got up and went to your bathroom. you looked at yourself in the mirror and gasped. your neck was covered in hickeys from your neck to your chest. you traced your fingers along them and slowly smiled.

you took another shower and got dressed for the day. you out on a crew neck to cover your hickeys. good thing it was cold out today.

you soon got to the campus and entered your class to see jake already there typing on his computer. he didn’t notice you so you decided to sit down at your seat. once the bell ring he looked up from his computer and spotted you. he gave you a knowing grin before standing up, getting ready for the lecture.

“alright guys, did you finish the homework from yesterday?” he chimed. students began taking out their notes and handed them in. you turned yours in too. jake continued his lecture until the bell rang. students left the class while you waited until everyone left.

you went up to his desk and gave him a smile. he got up and gave you a hug. you giggled and stuffed your face in his neck.

“your not hurt anywhere are you?” he asked. you shook your head. he sighed in relief before letting you go.

“same time at my place?” you said. jake chuckled and quickly pecked your lips.

“i can’t today. i have a meeting to attend.” he spoke. you pouted, but understood.

“okay. i’ll see you later though right?” you said. he chuckled at your urgent question and nodded.

“of course you will beautiful.” he replied. you smiled cheerfully before leaving his class so he could attend his meeting.

over the next few days it would be the same. jake would come over to your dorm and would spend time with you, either having loving sex or just spending time together. everything was going just the way you wanted it too. until an incident happened.

rumors started to spread around campus. whispers of favoritism and inappropriate relationships between you and professor sim filled the halls. despite your best efforts to ignore them, the pressure was mounting.

one evening, after a particularly stressful day, jake asked to meet you in his office.

you opened the door to his office to see him already there in deep thought. you let out a gulp before going towards him, “jake?”

he looked up at you, but it wasn’t with the same loving look he usually gave you. “y/n, we need to talk," he began, his voice heavy with emotion. "i think we should stop what we’re doing. what we had was nothing but satisfaction we wanted to get off our chests.”

your heart sank, where was he coming from with this? satisfaction? getting it off our chest? you couldn’t help but feel tears pricking your eyes, “w-what do you mean? don’t you love me?”

jake stared at you as if you were just a regular person to him, “y/n, what we had wasn’t love. you were just a way to relive my stress. whatever you thought we had ends here. you may be dismissed.”

the lack of emotions in his voice finally made your tears fall freely.

you let out a sob, “i hate you! don’t ever talk to me again!” you screamed out before leaving his room, slamming the door shut.

weeks went by, and the pain of the breakup lingered. you threw yourself into your studies, trying to keep your mind off jake. even though you had him first period and he was your professor, you made a good route on ignoring him. none of it was easy, but you found solace in your friend, riki, who had always been there for you. his presence was comforting, and slowly, you began to smile again.

“are you gonna have that?” riki asked. you rolled your eyes at him before smiling. you gave him your cookie which he happily accepted.

you both were currently waiting at a bus station. after riki found out you walk a long way to the college, he insisted on paying for your bus rides as long as he gets to go with you.

“it’s way too cold out today.” you commented. riki nodded his head as he munched on the cookie. you shivered when a gust of wind blew at you guys. riki noticed your freezing state.

“come closer to me.” he said. you scooted a bit closer to him and lay your head on his shoulder. you sighed at somewhat of a closer warm feeling. as you guys continued waiting you saw a familiar car stopping in front of you guys. your eyes widened when the driver door suddenly opened revealing jake.

before you could think, jake yanked your wrist and pulled you away from riki. you yelped and tried taking your wrist away from him.

“what the hell are you doing?” you snapped at him. riki got up and tried to help you but jake stopped him.

“get the hell away or you’ll regret it.” he gritted his teeth. riki stopped and looked at you worriedly. you shook your head at him not to come any further. jake took you to his car, opening the passenger door and setting you inside. he slammed it shut before going to the drivers seat and entering.

you silently watched him start the car, leaving riki in the cold. you felt guilty and angry and looked at jake, “let me go jake! i wanna be with riki!” you yelled.

jake ignored you. you scoffed, “jake seriously. let me go!”

“stop talking or i’ll find a way to make you.” he said. you immediately stopped ranting and stared at him. you decided to stay silent. you knew you couldn’t fight him when it came to this.

in all honesty jake never felt so jealous before until now. you were so close to riki that something inside him snapped. at first he was gonna let it go since he’s the one that initiated the end to your relationship, but he saw a spark in your eyes that he hadn't seen in a while.

a pang of regret hit him hard. he realized that letting you go was a mistake. the rumors and the pressure seemed insignificant compared to the happiness he saw in your eyes.

you arrived at a building. you assumed it was an apartment building. jake opened your door when he came out. you stepped out when he grabbed your wrist and took you inside.

when you finally got to a room he unlocked it with a pin and entered it. the first thing you saw was shelves lined with scientific journals and textbooks, a whiteboard covered in equations and diagrams, but amidst all the science, there was also a comfy reading nook with a big, plush armchair and a collection of classic novels. you noticed how he had a nice window view of the city night. now that you thought of it, it was your first time at his place.

“you can take your jacket off.” he said. slowly, you took off your jacket. he grabbed it and settled it on a rack.

you stood there awkwardly and waited for his next move. he extended his hand out for you to grab. you took it as he walked you to the couch, “i’ll go get us some drinks.”

you sat down on the couch and waited. you didn’t know what to talk about to him. he came back with a drink and handed it to you. you grabbed it and took a small sip. he sat down next to you and that’s when he made he contact with you, but this time he had that same old look he gave you back then.

"y/n, I made a mistake," he confessed. "seeing you with riki made me realize how much i miss you. i thought i was protecting you, but all I did was hurt you. can you ever forgive me?"

you took a deep breath, the memories of your time together flooding back. you wanted to just drop everything and forgive him, but you knew it’s best to face reality.

“professor sim-“ “jake.” he cut you off.

you sighed, “jake, i forgive you, but i don’t think we can go back to the way it was. what you said really did hurt me that i couldn’t even eat or sleep. i don’t wanna go that same route again.”

jake looked at you regretfully. you just wanted to hug him and hold him forever. he stared down, “i understand. i don’t blame you at all. i really did fuck it up cause i was a coward.” he admitted.

“you’re not a coward jake. you just didn’t wanna lose your job.”

“but i lost you instead.” he said. now it was your turn to stare down. jake slowly lifted your head up with his hand under your chin.

"I promise y/n, i’ll do anything to get you back." he promised.

you gave him a smile. you know it’ll take time to work things out, but you knew if you did it together, nothing would stop you guys from being with each other. so, you cupped your hand on his and gave him a reassuring smile.

“i’m counting you on that sim jake. and if you do get me back, it can be our little secret.”

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