Make her come

You slap her ass one last time then squeeze and tug gently on her clit. Her body convulses with her sudden orgasm, her wet cunt tunnel spasming around your probing fingers.

"Oh God, Oh God, Oh God, OH GOD PLEASE!" she wails, her tiny body shuddering as waves of pleasure flood through her. Her face is strained and taut, her lips wet with saliva. You keep thrusting your fingers into her, keeping up the pressure on her clit, keeping her coming until she's spent, bent exhausted over your desk, her body heaving with gasps as she tries to catch her breath.

You're immensely aroused, your cock straining at your pants.