The popular Momo from the cheerleading squad has a secret: she's currently dating a freshman boy. However, she's caught red-handed by a promiscuous senior from the baseball team. Blackmailed with compromising images of her secret relationship, Momo has no other choice but to spend the night with her blackmailer... She tries to take on an impossibly large "weapon" with her amorous and skillful riding, but the tables are quickly turned on her...