"Could you drive me to my school?" Rick, Jen's nerdy younger brother called down just as she reached the door.
Without hesitation she lied to him, "No, I have to pick up Jo Anne and the two Kates today!"
Jen might not even notice having her brother's cock before arriving at school... Rick on the other hand would definitely notice his sister's cunt. With an extra hour between his sister's leaving and when his bus would arrive he sat down to eat breakfast.
As he ate he could hear his parents having wild kinky sex in the living room and he tried to ignore it. He didn't even want to know why most of the moans were coming from his father. But eventually, and disturbingly, the animal noises started to arouse him and he found his hand sneaking below his boxers to give himself and absent-minded rub.
After a few minutes of rummaging he realized that his hand didn't seem to be finding what it was looking for and a conscious probe provided the new hypothesis that he in fact possessed a vagina. He unzipped and double checked the hypothesis.
With 45 minutes left to kill, and a bit of weird mood about him, he ended up in his sister's room trying on her panties. As he was modeling a very pink thong he discovered his sister's small collection of vibrators and dildos in her panty drawer. With one of his sister's smaller vibes he went about learning the art of the waved multiple orgasm.
Seconds later, or maybe an eternity later, he caught the sound of the bus' airbrake as it turned onto his street. Quickly he pulled up his underwear and pants and ran to catch the bus... In his haste he may not have entirely realized he was still wearing the pink thong and small vibe...