I'm looking for the name of a full-length movie about a visiting sister in law...

She comes to her sister home (and her husband) to stay for a few days and absolutely wreaks havok in the neighborhood. In one scene she fucks a male guest in the bathroom (a friend of her sister and brother in law), in another scene she persuades a blonde neighbour to fuck a repairman who is working on some windows, and in the end she gets in a threesome with her sister and her husband. Thanks a lot!