I went to my (ex)girlfriends house repeatedly when my parents weren't home because she lived two blocks away, we also "borrowed" her dads car to go see a movie together.
We saw about 3 movies that day and payed for only 1.
When her parents were home we did things with the door open because idk we were into that.
I also snuck her in my room in the summer and she stayed for 4 days without anyone finding out.