Alan and Lyndsey are in a relationship funk and they agree to spice things up a bit with a threesome. Lyndsey wants to have her threesome first and wants it to be with Walden. Alan hesitantly agrees knowing Walden would never go for it. However, Walden agrees since he's got nothing else going for him. High from Berta's pot brownies, the three of them are on Walden's bed and Alan begs Walden not to bring his "A" game. Walden starts making out with Lyndsey but cant bring himself to go through with it because he misses Zoey so much. Alan convinces Lyndsey to have sex with him downstairs hoping to work off the lethal dose of Viagra that he took. The sex is so great that Alan comes out of the bedroom the next day and proceeds to tell Walden that he can make out with Lyndsey any time he wants not realizing that Walden is Skyping with Zoey. After Alan and Lyndsey pick up a girl from the bar to engage in Alan's threesome, she disappoints them by hooking up with Walden instead.
