Fuck her tits until you cover her face

"Sit up and lean a bit forward if you can, please," you tell Sarah.

"Like this?" she asks, sitting up straight and then bending over forward as much as her stomach allows. Perfect.

You can barely contain your excitement - before today, you didn't know how much you wanted to titfuck a highly pregnant woman, and now, here's your chance.

It's admittedly a bit hard to figure out how to best get access to Sarah's goods, but you put one foot on the seat beside her and one on the floor - that works. Cupping one breast in each hand, you insert your dick inbetween them. Ooooh, that feels good. Sarah is warm to the flesh, and with you being sticky and she sweaty, there's no risk of bad friction ruining the fun. Yet it's not slick enough that you'll just pop out of there by accident over and over again, even though you're so hard it almost hurts.

You squeeze her boobs as hard as you can, smooshing them around your cock. She's got great, big hangers just waiting to be used - not by you, mind; that's just a nice little bonus - and they're almost completely covering your length.

Sarah is moaning again. As far as you can tell, this is still part of postcoital care for her - as if she considered this a cute, romantic way of finishing up.

Of course, you're not about to question that. You're holding on to her mammaries as well as you can, rocking yourself back and forth in as steady a rhythm as you can muster. It's honestly pretty hard to maintain one, with the train not exactly keeping still, and you have to take a step back on two occasions in order not to fall down. Luckily, the mother-to-be realises and offers support.

"Here, let me push those together for you. You can like hold the seat instead so you don't fall over."

You gladly take her up on it and grab the top of her seat, above her head. That makes it so much easier. And to boot, she's opened her mouth and stuck her tongue out, licking you whenever you get close enough. The entire time, she's looking up at you with large deer eyes. They almost look innocent.

The stimulus quickly proves too much. You start grunting and go as fast as you can. Your knuckles are white from gripping on so tight, and Sarah's holding her tits up a bit so that you now enter her mouth with every thrust. Soon, you make that one final push that ends with the first spurt.

Sarah gets most of it in her mouth, the rest lands on her neck and collarbone. The same goes with the second load, before you start moving your pelvis again to get the most out of your orgasm. It's amazing how much sperm you're dishing out, and it lands just about everywhere - face, chest, neck, chins... and a fair amount on her tongue. She gladly swallows whatever lands inside of her, and you can't help thinking it's a shame she has noone to share it with.

Then it strikes you - she does! "Kelly?" you call out. "Can you help clean me up and Sarah up one more time, please? You can share my sperm with her. I think you'll both enjoy that."

Kelly instantly comes around the corner again and puts your dick in her mouth. It's not quite stopped throbbing, but it's begun to soften. She deepthroats it a few times, then gets to actually cleaning it up. You're hoping it doesn't taste too much of lotion... but Kelly doesn't seem to care if it does.

Having finished with you, she moves on to Sarah's breasts, holding each up to lick the seed off. She's methodical, and very thorough. There's not a patch of skin that doesn't get to feel Kelly's soft, wet tongue... and not a nipple, either. Sarah is relaxing again, leaning back to expose her skin more and to give the younger woman better access.

You wonder if Kelly's enjoying this just because you told her to, or because she's as turned on by Sarah as you were. There's a larger deposit of your climax on the latter's cheek, and Kelly scoops it all up in her mouth, grabs Sarah's head tenderly, and french kisses her. She gladly reciprocates, although Kelly is clearly doing most of the work.

As you watch, you find yourself idly fondling Kelly's ass again, outside of her clothes this time. "Definitely take you up on that offer..." you mutter. She looks back at you and smiles, and you think to yourself that you hope you can keep doing this forever. That's when the conductor announces that your stop is next.