"Oh shit--"
In a way, it was almost their own fault. By now, they should have known that there are no limits to the amount of crazy bullshit which might turn up in this forest, not after all the havoc that had been wreaked on the ecosystem. 
"Shit, shit shit..." 
This wasn't even their first n-nnh--negative encounter with a plant-based life form, ev--even. The Creep was still an ugly memory for all of them, especially Raph. Shit like this was practically becoming run-of-the-mill, which probably said something really sad about all of their lives. 
"Mmmph!" 
He couldn't even blame the nitwits for it. For once, neither Raph nor Casey had fucked up enough to inspire their current predicament. They'd just been walking along, all three of them, and none of them had paid enough attention to anticipate the danger until it was far, far too late. 
"Thrust those hips, baby, yeah..." 
To be honest, they probably shouldn't have been out here in the first...first place. Raph and Casey had snuck out the back of the house to hide from Leo's latest "team-bonding activity." a fucking board game or some shit. 
"That's it, that's it, c'mon, just a little bit harder, suck a little bit harder --"  
Donnie wan--no, no, wrong word, was officially, collecting samples about changes to the natural environs...environment? Unofficially, he was trying to hide as hard as the other two, not that he'd ever admit it. Or at least, he wouldn't have. Such distinctions don't seem to matter right now. 
"Such a nice tight hole, ugh..."
In their defense, it really had looked harmless. Just a few flowers sprouting on the ground. Sure, none of them had--hah--had actually seen that kind of flower before, but so what? They weren't nature kids; they couldn't tell the difference between a dandelion and a daffodil. 
"Mmmph---mmph mmph..." 
He actually thinks he can s-see them from his rather...limited perspective if he squints hard enough. Green flowers; maybe that should have been sort of a red flag, weren't flowers usually every color but green? Or was that a myth? And they look rather fancy for wildflowers, almost like carn--carn--ah--tions. 
"Aaaarghh, come on!' 
"God, yeah, you fuckin’--nah!"
Green was good, wasn't it? Green was good, green was their color for crying out loud, the color of Donnie's scales, and Master Splinter's staff, and April's second-favorite color, and--and--the color of the hands on his hips and-- 
"So good for me, sweetheart, squirmin' on my dick like that..." 
Is that...is that cum, spraying across the flowers. Wa-watering them, maybe? Is that how it works, what a clever ecosystem...he's jealous, he wants more and more. 
"Sweet, you're so fuckin' sweet Case, Don, nnnggh..."
Donnie was p-p-probably the only one who had even noticed them and even he hadn't given them a passing glance. When that odd smell appeared, the one that had been so strange and so good good good, he hadn't turned in their direction. 
"Can you come again? Can you come again, doll?" 
He can he can oh please he has to he had thought it was food coming from the house, something new, maybe, one of Mikey's experiments finally bearing edible fruit. But then it had really started to hit them, and it wasn't...isn't...hunger that they're feeling right now (how could they think of food right now?) 
"Mmmmmph, mmph-mmph-mmph!" 
They'd wanted, they wanted, they're wanting. It's a lust that ssssinks deep into the bones, a lust like nothing he's ever felt even in his wildest April fantasies. Big enough and bright that he honestly c-can't tell whether or not there's j-just a little bit of love mixed in, and maybe he doesn't care. 
"That's it, shhh, ohfuck!"
Raph and Casey had looked so beautiful, and the way they were looking at him, the way they'd torn each other's gear or clothes off. H-he couldn't stop, can't stop, he'd go crazy if someone tried to pull him away from them, tried to clean him up and act like a human again, but--he disgressahfuck!
"Mmmph mmm mmmph..." 
He's not sure they managed...penetration--his memories are blurry. A quirk of physiology, or some side effect for the pollen? He wants to know how it all works, he wants to s-study it at length.
"You can take it, Donnie, know ya can--" 
He'd tell them they were pretty, too, if his mouth wasn't choked by a cock that's g-g-god-got to be Casey's, even though it tastes better than anything Donnie would rationally expect from Casey. But he's not being very rational now, is he? 
"So good for us, bro..." 
Donnie would--shit--stand up and hug them both if he wasn't forced over by Raph's hands on his hips and his cock up his ass, his brother's cock, and any disgust Donnie might feel like that has been quite simply fucked out of him by now. 
"I'm comin,’ I'm comi--gah!"
So instead, he sucks and moans and wriggles, thrusts himself back and forth, gives them everything he can because it feels so good, he feels so good, and it feels good to make them feel good. He wants it so much it hurts, he...he lov-- 
"Love you so much, Don..." 
He loves their bodies, and he loves the sound of them kissing over his head, and oh, he wants this he needs this he'll die for this he thinks he might actually be dying a bit with every orgasm and coming back to life, fluid-slick and shaking and blessed. 
"Mmmph--mmmmph!'"
Donnie should--should take the flowers back to the house with him, maybe, do some m-more testing. If they're able allowed to stop, that is, or--or if they have to wait long enough for the others to find them, to join them touch them holding them take them take h i m
"Ah, fuck..."
He knows, logically, that probably won't happen. He knows, logically, they're more likely to collapse into unconsciousness, to wake up sticky and overwhelmed and sore and horrified. He knows, logically, that who he is now will be very different from who he is before and after the poison burns through his system. 
"Am-amazin,’ you're...amazin’--"
He knows, in his bones, that none of that matters, not really. Not to him, not to Casey or Raph. What matters is this and them and the flowers, the sweet, sweet, flowers. What matters is not having to be afraid anymore, not having to be ashamed. 
"Mmmph."
They're here and they're reaching for him and he's reaching for them and, aa-aaah, in this one crystalline moment it's simply, unquestionably-- 
"Perfect."