Stroke your cock.

From Create Your Own Story

You'd seen the nude bodies of your mom and sisters countless times but you'd never actually seen them in action. Holy shit, it was so much better than porn. You slowly begin to jack off, not making a sound.

Unfortunately, you don't get to enjoy the view for a while before Jake turns his head and his jaw drops, causing Jessica to turn and gasp. Oh fuck... you thought. Immediately Jessica jumps off Jake's dick and runs toward you. You want nothing more to run and forget this all happened, but your body remains frozen.

Jessica grabs your hand and looks you in the eye. "Tom, I can explain this. But whatever you do, do NOT tell anybody."

You stare at her tits. "...uhh...." Jessica realizes you have your cock out and was masturbating to her all the time.

"Oh. Jake...we can have a little bit of fun together, too. But remember, you can tell nobody about us or Jason."