Repair the mood and finish your lesson

Charlotte slams the door. You hear loud sobbing in the corridor.

Bernie sits up on your bed, looking concerned. "She has a key?"

"Um, yes," you say.

You and Bernie stare at each other for a while, not knowing what to do. But of all things, your erection does not go down at all. Her eyes start glancing down into your lap.

"What do you want to do?" Bernie asks.

"How big of an asshole would I be, if I said I wanted to finish our first lesson?" you say.

Bernie snorts. "About as big as I expected," she says. "You want me on my back or on my knees?"

"From behind," you say.

"How could I possibly not already know the answer?" she says, with a sarcastic edge.

"I like Bernie's butt, and I cannot lie," you say.

"Don't push it," she says. "You're no Sir Mix-a-lot."

But she takes you in hand and strokes you until you're hard, then puts a condom on you ("Easier clean-up," she says), lubes it up well, and climbs onto the bed.

"Assume the position!" you say.

"Ha ha," Bernie says. But she does get onto all fours facing away from you, her curly black-haired mop-head down and her big smooth golden-skinned ass up.

"Today's the day," you say, staring at your cousin's asshole.

"Today's the day," she echoes.