Need help finding a movie !!

Hello im trying to find a movie or a series or whatever it is and i don't remember anything about it, except for one scene.  It's a girl and guy having sex and while there having sex there is a guy in what i assume is a attic or the ceiling looking down at them through the vent and then he moves to look at another couple in the next room but they weren't having sex.  After the two people were are done having sex the guy asked if it was good for her and she sarcastically replies '' yea, you totally blew my mind.  The young guy asks if they can do it again and she replies  you think you can get another 600$ from your mom. LMAO! Thats the only part i remember mostly because my dad came in and gave me grief because there was a topless girl on the screen. I had completely forgotten about it all together until the other day a friend and i were watching a movie about a stalker in the attic and out of nowhere i remembered that one scene and getting bitched at lol I have no idea where that's from a movie? a series?  is it a horror? a drama ? comedy? Anyone know?  Sincerely someone who is going crazy trying to figure it out.