Ask him what he wants to do

"I guess we do." you say, licking your lips, "What do you think we should do?"

"We should clean up for your mother." your dad responds, rubbing his nipples, "But I can think of a heap of things we shouldn't do."

"Really?" you gasp, grabbing his crotch, "Like what?"

Your Dad grins, leaning towards you. You can feel his hot breath on your ear, voice raspy with lust.

"Maybe I should show you."