Keep going

You can't stop now. It feels too good. You keep thrusting into her, minute after minute.
Suddenly she begins shaking, it reminds you of how she acted before getting into this state. This is not good.
"What... where..." she stummeres, getting back her senses. Suddenly she sees where she is and realizes what she's been doing.
"What?! Tim?! What are you doing?" She wiggles around trying to get free, she manages it and you stumble back. "Have you lost your mind?" She reaches out and gives your still hard cock a strong slap.
"Ah!" you scream. This was it. You've been so close, but now ... your cock twitches around and erupt right there in front of her eyes. Your cum is flowing out and onto the floor. She keeps watching you in a mixture of disgust and shock.
"To the principle! Now! And take your things with you!"