PrimeWire

You can now watch the entire Open House: The Great Sex Experiment Season 1 Episode 1 movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

In this first episode, Welsh sweethearts Mady and Nathan are interested in bringing another woman into their relationship, a process that begins by having a threesome. Also keen to open up their relationship are married couple Jon and Danielle from Bolton. They're interested in having group sex, but are unclear whether this will help overcome the demons of their past.