Plot summary
Barney invites Burt and Virginia to a "weekend retreat", but it turns out to be a fat farm and he only brought them (along with doctored "before" photos) to inspire the other guests. Sabrina and Jimmy both agree that they'd like to have a child of their own, and they try to time their sexual activity to Sabrina's current cycle, as she insists on a November baby. Unfortunately, they are stuck watching Maw Maw while Jimmy's parents are away, and she constantly interrupts them. Later, Frank arrives and does the same.
Credits
Adapted from Wikipedia contributors, Raising Hope season 4. HTML formatting and reference markers removed.