After the Party
It was a long party, and most people went home already. Only Angel and David left to clean up the bar before they leave too - or maybe do one last thing before that. David decides that Angel needs more attention than the bar. Non of them notices the drunken Leslie sleeping nearby, at least not until he wakes up to the lustful moans. And since he woke up already, why shouldn't he join in for a good DP fun?