Walden discovers how challenging it is to be intimate with women with his foster son, Louis, in the house. Also, Herb (recurring guest star Ryan Stiles) asks Alan if he can go on a date with Lyndsey.
Alan and Walden befriend three moms at a kids' gym, but things get complicated when Walden becomes attracted to one of them. Meanwhile, Alan's invited along for a wild girls's; night out with a group of moms.
