He cums

Pressed up against James, Amy continues to glide her hand up and down his cock, James shivering under her touch.

"Oh I have some ideas," Amy says in a husky voice almost right into James' ear and it proves too much. James' cock suddenly explodes, globs of white hot sticky cum bursting from it's tip all over Amy's hand and jeans.

"What the fuck?" Amy gasps, looking at her hand as she let James' cock fall. "That's all it takes. God, that's so disappointing."

"I... I'm sorry," James stammers still stood there with his legs trembling.