Lift your skirt without saying anything

You just lift your skirt and turn your head away without saying anything. His reaction says alot, he gasps and then moans as he picks up speed with his hand. You hear him fapping away furiously. Soon you hear him grunt and say.

"I'm cumming"

You wait a few seconds before lowering your skirt, but it catches on something. You look back towards him and see that he is right up to you, his dick under your skirt.

"AH, what the fuck!?"

"I couldn't resist, I hope that's okay?"

"Did you cum on me?"

"...yeah..."

You lift your skirt and look down and see his cum all over you groin, the rain made it so you didn't feel it happen. Lowering your skirt, you say.

"leave. now."

He apologizes and runs off. You made him leave instead of just walking away yourself because you are in the middle of an orgasm. Thinking 'Oh god, his cum is on me, his cock was almost- oh god, that's so hot' your orgasm continues. Your legs shaking. After coming down from your climax, you go the rest of the way back home.