Wait until late night

It might be easier to seduce one of the girls if it's later.
Late at night, specifically.
At very least you won't have to deal with Calvin if you fail...

So you wait and wait and wait...
You take a moment to listen for any noises within the house. From what you can hear, it seems that everyone is either asleep or very quiet.

You are dressed with nothing but a small, sleeping shorts and a comfortable t-shirt.
You're on the second floor of the old farmer's house and as you can recall on your way up here, all the rooms are on this floor.

The hallway is dark and quiet, and even if there's still some noise and light outside you feel as if the house was completely empty.
There are four doors and you don't remember what door belongs to each girl.

Shit.

Now, were do you go?