A change for each of them.

It was pretty sexy watching siblings go at it. Why not change the rules a little though. Every orgasm should be an event after all, why not make it more

SNAP

Now there'd be a surprise for both of them something that would make the experience more enjoyable for them and more erotic for John. He was finding this world all the better with more **** changes and twists. He liked Nick but that didn't mean he wasn't going to mess with the kid.

The siblings were going at it hard Nancy staring up with a mix of disgust and arousal, her face harsh.

"Cmon Nick just cum already," said Nancy squeezing his cock with her breasts trying not to catch how off this whole thing felt, she wanted this over with, for her brother to cum so they could... could what? Get to the breeding? Was she gonna have the twerp's baby? Maybe she should try to... The twitches between her bare breasts finally brought her back to reality.

A spray of seed spurted up and Nancy opened her mouth in surprise as she pulled back, spatters of seed spraying over her face. Nancy's eyes rolled up as she watched in amazement. Her brother's hair grew longer, his face softer. His cock was getting bigger as well as his balls but his overall shape was getting daintier. She knew that this was changing on the inside too. He was now looking a lot more like her type.

Nic groaned and shook her head. The trans girl was all to happy to let her big sister keep pleasuring her she knew that soon they'd get to the main event and she'd put a bun in her sister's oven. She knew this was implanted, but being a girl made sense to her even if she was a girl with a cock. She'd have time to look at her gender identity after the tournament.