Lisa and Jessica get in a bet, whoever falls asleep first will have to give the other $100 bucks. Meanwhile, someone at work is stealing Homer's things, so Homer must find out who is doing it. Meanwhile, to find out Lisa's weaknesses, Jessica attempts to seduce Bart for some weaknesses of Lisa's. Bart doesn't crack, so Jessica gets an idea. Jessica takes Bart out on a date to the Kwik-E-Mart, where she gets 3 all syrup squishees, and let's Bart drink all three of them. Bart goes on a sugar rush, but still won't crack. So Jessica ends up getting ice cream, cookies, some chocolate bars, a carmel Apple, and a cupcake to Bart. Now Bart is extremely hyperactive, and Jessica gets him to tell her a weakness of Lisa's. That night, once Lisa and Jessica are doing the staying awake competition, Jess