 Kelly strongly protests Brandon s research on a sex shop selling pornography and other adult material, as well as his participation with Steve in a bachelor party for Steve s former college fraternity brother Muntz, while Kelly also has strong concerns of her mother and sister. David also buys some things from the sex shop to revamp his sluggish sex life with Valerie. Meanwhile, Donna learns that Monica, a new assistant of her designs, has a psychological problem of self-mutilation and tries to get her to listen to her.