Once back at your parents crib, you gotta slip into something sexy under the guise of comfort (usually a kimono), making a wardrobe change from formal to nightware, much like from bruce wayne to batman. After that, it's just a matter of banging on your parent's couch while using the movie's explosive soundtrack to mask the noise.
Guy 2: Yeah Bro! He was using a blanket to cover his junk!
Guy 1: He Dark Knighted that Hoe!