train tf smut

"A young man, something of a runt, catches his train with little time to spare. The only remaining seat is between a witch and a succubus, both with voluptuous bodies, of course. He's floored by their looks and tries to hide his arousal as he takes his seat, but the ladies know exactly how he feels, and decide to have a little fun with him. Once he's seated, the witch, who's in the aisle seat, fishes around in the overhead rack, feigning looking for something while pushing her tits toward the boy, jiggling and swaying and transfixing him. The succubus, from his other side, 'accidentally' drops something which rolls under the seats in front of them, and makes a show of bending over, giving the boy a clear view of her stockings and panties beneath them. By this point, the boy has a raging erection, and the succubus trails a finger up the bulge in his pants while the witch produces a flask of something to 'help with that.'
Of course, the relief she offers him isn't immediate. He's soon more of an aroused mess than he was before, panting with need, visibly twitching in his shorts. He rubs at his chest, moaning, a little confused at how sensitive it is. His shirt feels tight, and his chest is so soft... and it's swelling, slowly growing, nipples are puffy and protruding under the fabric. His pants are uncomfortably tight, not just because of how *hard* he is, but the waistband is also pinching at his navel. The succubus undoes his pants, freeing his erection, and revealing soft thighs that seem to be plumping up, along with his ass and belly. The witch unbuttons his shirt, and a pair of ripe canteloupe tits spill out. The boy's face has rounded, he's so--*she's* so cute now,  even displaying so shamefully this once-repressed lust. Her dick is twitching, dripping with need. The succubus pushes her belly-down over the witch's lap, and the witch beckons the first horny-looking stud she can see to fill up the cock-hungry little slut's mouth.
The witch coaches her through the first stud, then the second, then his girlfriend, and a third while kneading her fresh breasts, and the succubus plays with her thrumming dick and swollen jewels. By the time the girl gives the succubus her sticky load, she and the witch are plastered from the tits up with cum from everybody else in their car. The beauties give the messy slut a few sloppy kisses, and just before her stop. She stumbles off the train, holding her clothes, and her body starts to slim down, becoming what it once was. A few people are there, and give him odd looks as he slips back into his clothes before heading home. He couldn't grin any wider as he leaves the platform, though. They'd be back again next week, and so would he."