Double the pleasure, Endless Man Milk.

Pulling out of the kiss, John kept on pounding Amy's ass as he grunted before speaking out his wants, being on a bit of a high because of his powers, "I John Doe, have two dicks and big balls. I can choose to cum indefinitely and when start becoming soft. Fucking... you... I... FUCK Woman inside and skin are elastic enough that when I cum into them and fill it out, the organs will just keep the cum in while stretching bigger and bigger to hold all the cum."

The two siblings continued making love, with both of them talking to each other even if one of them was asleep, and John didn't notice the statements he made while going through the high level of lust.

The pounding continued, before John finally finished in Amy's ass, shooting with both of his cocks a large amount of semen before pulling out after forcing both cocks to stop cumming . Watching the large amount of cum slowly flow out of her ass, John kissed Amy before asking, "Did you have fun."

"I came..." was all the girl said before falling into deeper sleep, causing the boy to chuckle in response.

Returning to his room, John wondered what to do with his father, because even if Amy changed that might just have father going to somewhere else. He needed a more permanent solution.