Try to listen

You slow the slow, rhythmic pace your hips are grinding and concentrate on what is being discussed a mere few metres away.

".....no.....don't ask....to......why him...." was all the muffled speech you could hear.

This, of course, intrigued you, but before you could finish any thought...

"Why have you slowed?" she says annoyed, "if it is to stop yourself from cumming then fuck you, do you think I want to fuck a stranger in a room full of strangers?!"