Drug dealer Pacman's delivery runs into a snag when stepmom Abby's supply of money isn't equal to his supply of drugs, but his problem dovetails with daughter Elizabeth's when it turns out that she needs some coke to stay awake for an all-night study session. After he gets her all heated up with a massage but has to leave and do drug-dealer things, she tries to satisfy herself with her own hands, but when he comes back from his errands they work out a barter system that leaves them both satisfied. Meanwhile the Professor shows Griffin that there are better reasons than future financial success to study hard, and Vince begins to suspect that his pleas for this bunch of drug-crazed sexaholics to stay clear of scandal may be futile.