Alas, he busts

Your position is slightly lopsided, and the leg bearing most of your weight is starting to feel the strain. You shift slightly to spread your weight more evenly across both legs.

This slight movement also moves your pussy on Adrian's shaft, and he groans.

"Ohh fuck, I can't! I'm sorry, it's too much, I can't hold it! It won't stop, I, shit, ahh, fuck, I'm c-cumming!"

His head rolls back and he moans loudly. His hands slip down behind you and squeeze your ass firmly, pulling you closer into him.

You feel his dick twitch inside you, and it sends shivers up your spine. It twitches again, and again and again. You can feel a vague warmth building inside you, which you assume is the heat of his semen radiating through the condom. You shiver again. Even bagged safely up in a condom, the realisation that you technically have sperm inside your vagina right now is such an erotic thought!

After a few moments, Adrian exhales deeply, and all of his muscles relax. He lays panting, spent, but gives you a rather embarrassed sidelong glance. "S-sorry..."