Cum in your pants while Patricia gives you a lapdance

You can't take it anymore. You look at Patricia's half-exposed asscrack and imagine how it would feel to just slide your penis in and enter her. In the meantime she is riding you more and more vigorously.

"John, it feels so good!"

You empty your load in your boxers while your ten eighteen-year-old friends watch you cum.
"Girls, he is cuming in his pants." Lisa notices.
"Oh, what a shame..." Sarah sighs.

That was a great day. You just regret that it ended so fast...