They jerk each other off

"How about I take care of that. Okay, brother!" Casey grabs her hand around the pole that was pointing in Timmy's pants and with a smile starts to stroke him off.

"Ooh!" Timmy mutters as he tries to reach for the ropes.

"What's the matter, Tim? Can't handle an old fashioned hand job. If the shorts were off we could really have a show."

Timmy struggles and moan. He knew he couldn't reach the rope. His feet start moving across Casey's shorts.

He notices a little moan coming from Casey which gave him an idea.

As Casey continues to jerk him off, Timmy starts to rubs to one of his feet across Casey's pussy.

"What…are….you…doing?"

"I learn this from mom…ehh…dad….on…uh…date night."

"You…ugh…little perve."

Both brother and sister moan as they were both jerking each other off, and not willingly to break the hold till the other does.