Soon after pulling the stone out of his cup Biff made his way to the showers to wash up after practice. It was definitely a new experience for Jon and Karyn being washed by someone else's hand and having no control.
They noticed that without the restriction of the cup they would swing about much more than they had during practice, something which Biff's choice of underwear, navy blue boxers, did nothing to help.
Once Biff was dressed life quickly got boring for the erstwhile teens. It was extremely boring being a testicle and Jon was beginning to question his motivation.
The boredom was punctuated with moments of movement followed by long periods of sitting still. Jon realized that Biff must have come home at some point when Biff used the toilet in what was obviously not the school bathroom.
At one point there was some quiet conversation going on that Jon guessed was probably Biff eating dinner. This was followed by Biff telling his parents that he was going to go meet Sarah for a movie and desert.
A short car trip later and they were joined by someone had to be Sarah. Not long after the sound of the engine ceased. Jon and Karyn both noticed that it had been getting a little bit more crowded in Biff's pants ever since Sarah got in the car. Perhaps, Jon though, it won't be boring for too much longer.