at the drive in one of the hot girls takes off her bra and exposes her massive boobs for several seconds.
A man sneaks into an office as a doctor and gets one girl to take her bra off, he fondles her boobs until he's caught a second later.
A boy rips off 2 of the hot girls' tops and their boobs are exposed briefly.
The goal of the 5 guys is to see Purity's boobs, all attempts fail until the end where she sings the anthem. The set up a magnetic device, where all the instruments and shirt, pants, and bra (somehow) get pulled away and the movie ends with the camera zoomed in on her boobs standing in her panties. All cheer and clap, while Purity is in horror. Credits roll.