My Sister's Keeper is the sixth episode of Season 3 of Three's Company, and the 37th overall episode of the series. Written by Gary Belkin and Deborah Hwang-Marriott and directed by Dave Powers, it first aired 17 October 1978 on ABC.
Summary[]
Janet's college-age sister, Jenny, comes to town and Jack offers to show her around. Despite Janet's concerns, Jack is a complete gentleman. However, things take a turn when Jack, having been relocated to the couch rather than his own bedroom, takes some medication before sleeping, and, after waking half-up to get some water to drink from the kitchen, inadvertently, out of force of habit, wanders back to his bedroom, as he then winds up back in his own bed with Jenny!
Jack and Jenny try to explain that to a furious Janet, who thinks that the two were "fooling around." Jenny, upset about her big sister being overprotective of her, and Janet have to iron out their differences over Jenny's ability to make mature life decisions, as they are finally able to work things out before Jenny returns to Indiana.
Gallery[]
