#it is not just a tortoise

[redkehlchen]

Serious gamer discussions…. 🐢

[frogtowns]

pov: you’re on animal crossing tumblr in 2015

[curiousaur]

every donnie must have: 1) a bo and 2) a blep

[poorly-drawn-mdzs]

A new challenger approaches (slowly)

[First] Prev <–-> Next

[markscherz]

Why are lizards and salamanders so similar in shape?

That’s just what peak performance looks like

[catboybiologist]

Hi! I'm Sierra. Time for a pinned post refresh.

Otherwise known as CatboyBiologist, or @hi-sierra (my SFW blog [this one is SFW too, but less so]). This page is remaining active, but if you want to find me somewhere else, I use the same username on reddit, Instagram, co-host, and tech.lgbt. This is me:

Trans woman, PhD student in molecular biology, boymoder, shitposter, freediver, hot girl on your phone, hiker, rambler (this post included), tgirl tummy tuesday supplier and enjoyer, former femboy, bane of bioessentialist fuckwads who try to use biology to validate biogotry, flaming bisexual, 196 nanocelebrity… whatever was the first thing that brought you to my blog, I hope it’s enough to get you to stay! I post selfies, hornyposts (minors and people who are averse to that be warned), stuff about the ocean, posts about my growing sense of wanderlust, my adorable lil tortoise, tutorials for transfemmes and GNC people, rambles about science, documentation of my own transition, rambles about transness, rambles about the eroticism of programming a machine to feel arousal, rambles about nature, and random shitposts. Please send me pictures of cute animals in your life!

If you wanna support my science career and my transition, consider dropping a tip here! PhD salaries are notorious for being negotiated to be exactly the cost of living…. And then forgotten about for years as inflation drops that below minimum wage. So I’m always a little strapped for cash. Anything helps!

Links to some of my tutorials and relevant resources under the cut:

I'm tracking my transition, and some people have said they found this helpful! This spreadsheet is generally updated monthly:

Usually, I write a little journal to go with it when it updates- you can find that under the #trans journal on my blog.

If you're interested in checking out some of the things I'm trying to write, here's a post with links to individual stories I'm making:

https://www.tumblr.com/catboybiologist/741010247774306304/writing-consolidation-post?source=share

My femboy guide, written well before I started HRT, but still has relevant info:

A "boyboob" tutorial, aka how to make it look like you have cleavage in an outfit that looks better with it:

A quick and dirty guide to taking better selfies, with a specific emphasis on people who may have stopped hating their body recently due to transition:

And here's a few of my personal favorite little rambles and posts about my transness, in no particular order:

CW for transphobia on this one:

A massive shoutout to @foldingfittedsheets for this amazing art of the lil borgir holding a trans flag:

I adore this so much <3 if you want to support their art, her commissions are open and really sweet!!!!

And of course, a massive shoutout to @whalesharkcat for this lovely pixel art of my tortoise:

I still love this so much, and will continue to into the future <3

For preHRT selfies, search the femboy tag. For post HRT selfies, use the "trans selfie" tag. I've been on HRT since August of 2023, so I'm still very early in the process! Day to day, I present male, but I plan to change that around the 1 year mark.

I guess that's about it! One final note is that I've been alluding to video/podcast style things for a while now. With my aderrall prescription, I've actually put in a lot of research work that might lead to 1-4 of those, so that might actually happen in the near future! No promises of course, life always catches up to you.

And if you liked my previous pinned post better, here it is:

Anyways, if you read this far, thanks for sticking around and bbyyyyeeeeeeeeeeeeeeeeeeeeee

[pinofdnp]

you are the only exception <3

[scatterbrainedbot]

Hey, hey, @tmntbestsibscompetiton here! We don’t currently have a description or picture for your entry into the competition yet! You don’t have to send one in, but if you’d like to, just answer this, or tag us so we can make sure it’s ready for when the competition begins! Thank you so much for joining, and good luck. 

@tmntbestsibscompetiton

falls down stairs IM HERE IM HERE SORRY IM SO LATE

RAT SONS AU

in which Master Splinter is a wise and silly old tortoise, and father of four skittering, chaotic, ninja rat children. <3

(inspired by that one background moment of the 03 series! 🐢🐀🐀🐀🐀)

there will be lots of similar plot points as the 03 series (like 'tales of leo' and 'good genes' etc etc) but there are also a lot of fundamental changes in the foundation of things too — like the guardians and ninja tribunal and the hamato family line etc etc. content wise tbh its probably mostly just gonna be snapshots of random moments throughout the boys lives, but i do kinda have some plot concepts? so we'll see 👀

(embarrassingly long) introduction under the cut if u'd like to read!

——————————————

Years ago, Oroku Saki defeated Hamato Tang Shen in battle, and finally brought an end to the family that would deny him his power. He ordered her homestead be razed to the ground, and all mystic artifacts to be delivered to him. Particularly, the Hamato’s prized pet tortoise, which was rumored to be itself a conduit for the family’s legendary mystic abilities. With the creature in his possession, along with the new rapid-enhancement chemical he commissioned from laboratory familiar with mystic properties in New York — at last, he would be granted his godhood, and guarantee the legacy of his fathers clan. The Hamatos could deny him no longer. He had won.

Or he would have, had the fools at the lab not ruined everything, the precious mutagen spilling all over the tortoises crate and the fool handlers who carried it. The contaminated men morphed into horrific, animalistic monsters, attacking the scientists and wrecking the laboratory itself. And, most crucially, in the ensuing madness, the crate which contained the tortoise, his last possible connection to the Hamato’s power, lay shattered, and empty…

Meanwhile, Hamato “Splinter” Yoshi, who until this point had quite enjoyed his extended existence as a simple tortoise and family pet, found himself fleeing the eyes and hands of the man who killed his human family, and the lab that granted him this new shift in consciousness, to instead face the terrifying chaos of the streets and alleys of NYC. His transformation into something more bipedal had hurt considerably and left him aching and disoriented, but still he could not pause. He could not falter. Not until he found somewhere safe to hide himself and the four squirming, impossibly small rat-pups in his arms. He hoped the chemical that washed over them had not warped and hurt their young bones as it had his own. He hoped he could find somewhere safe to care for them. He hoped they could survive the night without their mother. He hoped, he prayed he could protect these precious, squeaking, peach-fuzzed ruminants of his family. He did not think he could survive any more loss.

For now, he would do what he could, and slip into the shadows of this city. Having lived so long among ninjas had its benefits there, at least.

[jadedontaskwhytoo]

@yyenky, how did I do?

[todayintokyo]

Autumn in Tokyo

[chanshoesunite]

Imagine Chan making you come in the shower

When you hear the shower curtain rustling behind you, you don’t need to turn around to know that your boyfriend Chan is joining you in your morning shower. You had to get up early for class and had wanted to let him sleep in, but a smile plays on your lips knowing that he didn’t want to let you go to uni without seeing you first. Seconds later, you feel his body press against yours, and – oh.

His left hand finds your breast, immediately playing with your nipple, as his other hand snakes between your legs and he plunges two fingers inside of you without warning. You throw your head back against him as a rough moan escapes your throat, and you can feel him kissing your shoulder.

“Good morning,” he rasps into your ear. “I figured that you’re in a hurry, so I can’t fuck you properly. But I’ll tell you what’s going to happen now, princess: You’re going to come on my fingers like a good girl and then I want you on your knees for me.” He nips at your shoulder and starts fingering you in earnest while his other hand stimulates your nipples, your clit, presses you against him, moves over your skin, exploring freely. His fingers inside you feel so good, and the whole situation, with his strong body behind you and the warm water spraying down on you, feels simultaneously vulnerable and comfortable, which makes it all the more erotic.

Chan is whispering dirty little nothings into your ear, telling you what a good girl you are, how wet you are, that you’re so sexy, too hot to resist, a dirty little slut. It’s this mixture of sweet and demeaning that you like so much, and he knows it, and your arousal rises and rises.

“Come on, YN, be a good girl and come for me,” he growls, and it’s that rough voice that does it for you. You come on his fingers, shaking against him, and Chan stills his movements to feel you spasm around him. A few seconds later, when you’ve caught your breath, he turns you around to kiss you deeply, and you give in to his powerful gesture, letting him claim your lips and explore your mouth.

Then he pulls back, and there’s a menacing smile on his lips causing his eyes to glint in mischief. “All right, baby girl. My turn. On your knees.”

[swan2swan]

Just give it time, Sammy. Give it time.

[huellitaa]

──★ ˙ ̟🎀 i present to you all, my tortoise !!!

[fizzytoo]

⭐stayin in my lane, best friend named TAILS

[cerise-on-top]

Hi, love your writing. it's so good 💚💚

Could I request some HC for LV + Graves who have an S/O who has three cats that love to sleep on top of them?

😸💚

Thank youuuu! That's very kind of you! This ask actually inspired me to text my friend again and ask her for some cat pics since those critters are just so goshdarn adorable!! I wish I had a cat! I once had a tortoise, though, and she was just the most lovely and adorable little thing out there! I loved her so dearly! Anyway, thank you for the request!

Alejandro, Rodolfo and Graves with an S/O with Three Cats

Alejandro: He gives off quite some canine energy, so there’s a chance your cats won’t like him too much. That, of course, you can try to combat by having him feed them. Either way, if they like Alejandro, then you can expect him to be all over your cats, always talking to them, petting them, picking them up, kissing them and what else it is you do with a cat. He loves your little kitties and would kill someone for them. Although he’s more of a dog person himself, he doesn’t prefer dogs by much, so he can really go either way. When he sees just how cuddly your cats are and when they take a nap on his chest while he’s watching TV with you or something, he will not hesitate to pet the cat, scratch the little fella behind its ears and try his best to make them purr. He loves the sound and the vibration, it brings good vibes and makes him just as content as the cat. The rule that one must not move when a cat is sleeping on top of them holds true for him. If he needs to use the bathroom while one of your cats is sleeping on him then he’ll just have to endure until it wakes up. But if he’s content as well, then he might just cuddle the cat, or your cats even, and take a nap himself. While he’s not usually one for napping, he will when he genuinely can’t move because of your lovely little felines. If your cats let him, he will give them big hugs as well. Is so smitten, he’ll buy them some toys and play with them, if he has the time. And if your cats are too lazy to actually play, then he’ll pick them up and lovingly scold them for being so unmotivated. Meows back at cats too.

Rodolfo: He gets along well with just about any animal. While he’s not scared of them per se, he does have a healthy amount of respect for them and won’t just walk up to your cats to give them pats and kisses and hugs. He will comply if your cats walk up to him because they’re curious, but he really doesn’t want to annoy them or worse, end up with him getting scratched. While he may not meow back at your cats either, he will talk to them as though they’re regular human beings. It’s somewhat funny, he takes them seriously and will, in a deadpan tone, tell them that there will be no more snacky treats for the evening. No matter how annoying your cats might get, he won’t budge. His decision is final, so there are no more snacky treats. He quite likes the thing where if you scratch a cat’s butt, it will move it upwards. Loves doing that to your cats, it’s funny and endearing to him. When your cats are sleeping on top of him, then he won’t particularly budge either. He’ll pat them, but he will also move them if he really needs to use the bathroom. No privileges for your cats this time. However, considering he is, more often than not, pretty tired, he will pretty much always take a nap with your cats if he can. The pressure on his chest is comforting to him, plus he gets to feel something nicely warm and furry on top of him as well. However, he sometimes moves in his sleep, which might wake up your cats, which might wake up him. It’s a never ending circle, but if he can, he’ll just sleep with your cats in his arms. Take a picture of him like that and he’ll try to take embarrassing pictures of you as well with your cats.

Graves: He is definitely more of a dog person, since those are strong and reliable. A cat will meow at you in the dead of the night because it knocked over its water bowl and can’t turn on the faucet on its own. Honestly? He always has something to complain about. Your cat pooped again. It knocked over the food bowl. It farted in his face. Things like that. He means them, but the way he says those things is sort of just funny. Imagine a 40 year old man having beef with a cat. He has very little shame when it comes to scolding your cats. At first, he will use his human words to get them to listen. But as soon as he realizes they believe it’s snuggle time, he will meow at them, making the situation even worse. However, every time you hand him one of your cats, he will take it from your arms and cuddle it a bit. Every time one of the critters walks up to him, demanding attention, he will pick it up and carry it around a bit. Sometimes in his arms, sometimes he just slings the cat over his shoulder and keeps it there. It’s sort of funny, he might pretend to really hate them, but he would never yell at them, only be stern and tell them to not be so gluttonous. When your cats are sleeping on top of him, he does not move an inch. He would never admit it, but they are your shared furry babies and he, like any American, would shoot anyone who ever tried to hurt you or them. Takes naps too when he can, or when nothing of interest is on TV, but he prefers getting to hold something instead of having your cats lie on top of you. You can take pictures of him to show him that he really doesn’t hate your cats as much as he pretends to, but he will always claim you photoshopped it, despite knowing fully well that happened.

[catboybiologist]

Like many proud and ambitious parents, I'm hoping he grows up to be a doctor