1 day in heaven...or is it? (girls only pleash)

So my great great something went away on a holiday and im house sitting their awesome massive house.
I invite A few friends and we decide to leave 2 people inside the house for a day to themselfs, whilst we go to the movies and stuff.

You pick a box, then a colour, then a number goodluck! You'll wake up in the morning with your guy in the house!