Zack & Sarah's Swapping Adventures

Blushing at the thought of what his sister will do with his equipment, he began thinking about what he would actually do with her equipment now. Considering that his sister is most likely going to masturbate now, he figured he had nothing better to do but to go at it again.

"Female orgasms sure are great...", he thought to himself, about to finger his sister's vagina once again. He got to the point right away and slipped two fingers inside of him and masturbated furiously. Careful not to moan loudly, he finished off quickly and was left in the afterglow, feeling happy about his new sexual organs.

Another half hour passed, Sarah masturbating, and Zack exploring his pussy some more, and after that, Sarah knocked at Zack's door.

"Yes?"

"Bro! That thing is... certainly different.", Sarah said with a giggle. "Well, but what I came for was something else. I believe it's time for Zack and Sarah's Swapping Adventures! What do you say? I'm hyped for it!"

"Oh, you, uh, want to do that now? Oh well, sure, I don't have anything else to do I believe.", Zack stammered, not sure about what his sister would have in mind with that whole 'Adventure' thing.

"Awesome! Alright, then get your remote and follow me! Hehe!"

"Sure...", he replied, as he got the remote from his desk and followed his sister...