A date.

A look at the poster on the wall should be sufficient to set the context. College dorm room bunk bed. Also, in the first image, you can see a woman's arm, with big bangle bracelet. So it's definitely a bunch of straight guys.

The narrative of our evening:

Arriving at the date's apartment:

A few drinks:

Some dancing:

Foreplay, or getting to first base:

Score! Home Run!