Mel, Linds, and Gus
The girls discuss their unwanted house/bed guest and their relief that their son started screaming at just the perfect moment.
L: It was just a spontaneous, I don't know how the hell it happened but there you are doing it kind of thing.
Lol!! That made me giggle. Yup, threesomes are totally one of those things that just happen.
Neither one of them wants to be the one to tell Leda that they're strictly a twosome (except when they're not), so they decide to just wait for the attic to be finished and the problem to go away on its own. Right, because that's going to happen. ;)