Brian mixes the E in the punch bowl, then goes up to the bedroom. Lindsay's all morose on the bed. Brian jumps up next to her. Lindsay tells him to go away. Brian tells her to make him. She pulls her hair out of a bun and unbuttons her shirt and continues to be depressed. Brian asks if she really cares what Ron and Nancy think. Lindsay reminds him that they are still her parents. She grabs the joint out of Brian's hand and adds, "I know I shouldn't care. I shouldn't let them hurt me. It's not my job to please them. To make them happy." Brian asks her if she remembers "Billy the Asshole's birthday party junior year." Lindsay remembers that she got dumped by her girlfriend during it. Brian sighs, "Those were the days." Lindsay's like, this is you trying to cheer me up? "I was a wreck." Brian grins, "Not for long." Then Lindsay remembers, "Thanks to you putting E in the punch...loose women...and the B-52s." Brian drawls, "Those who don't learn their lessons are condemned to repeat their courses." And from downstairs, they hear "Love Shack" start to play.

It's louder in the living room. Much louder. Everyone's half-naked, tripping out, and having a great time. Leda decides it's time to ride Justin like a pony. The boy's laughing too hard to mind. Lindsay busts up when she comes downstairs, and Leda grins, "The bitch is back." Melanie's stripped down to a tank top and orders Lindsay to dance with her. Emmett pushes through the crowd on his way out the door. Leda's got a blue dildo strapped on and asks Brian if he likes it. Brian asks if her offer still stands, and starts to swing her around by it. Mike's just a little weirded out by that. Leda makes Justin suck on the dildo. As Mel's swinging Lindsay into a dip, Ron and Nancy walk in the door. Of course. Nancy snipes, "You call this brunch?" Mel offers them some punch. Hee! Lindsay gasps that she thought they weren't coming. Nancy prims, "We changed our minds. And from the look of things, we shouldn't have." Ron's making the best of it and getting friendly with some lesbians over in the corner. Lindsay, almost crying, says that they were just having some fun. Nancy finds it hard to believe that her daughter thinks this debauchery is fun. Lindsay's like, yeah, this is fun, and introduces her parents to the room. Everyone waves happily at Ron and Nancy. Nancy sneers that they're not staying. Nancy calls Ron back to her side, but Lindsay stops them and says, "You know, the whole point of this party was to prove that we're just like you, so you'd accept us. Like I'd tried to accept you." Nancy wasn't aware that she needed acceptance. Lindsay counters, "You're right, Mom, you don't. Neither do we." The gang titters some more, and Melanie nuzzles Lindsay contentedly.