I don't want to enjoy dicks!

Poor Gary was suffering even in orgasm.

After his sister swapped their bodies and told him she wanted to be a guy, he had to adjust to living her life.
Gary used to be a big guy, but he complained too much. His sister on the other hand was a go-get kind of person, and was tired of not being taken seriously, and told him he would do better "with a little pussy to match his little tantrums".

So, when her old boyfriend came around, instead of breaking up, Gary just went on one of his tantrums. The boyfriend thought his girl was having a bad day, and started kissing and rubbing her. Gary wasn't expecting to feel good like that! Before long he was on his back taking a big dick and loving it!

When the orgasm hit he started whining again: "This is not fair! I didn't even get to lose my virginity as a guy! I don't want to enjoy this! I'm cumming as a chiiiiiick!"

Her boyfriend didn't understand half of it, but since she had orgasmed already he thought she could help him and herself and put his dick on her mouth and came.
Gary would soon understand that no one likes tantrums, be it from guys or girls. But as a girl the results of keeping your mouth open can be a bit worse!