Innocent Taboo (1986) 
Genre: Adult | Drama
Country: USA | Director: Scotty Fox
Language: English | Subtitles: None
Aspect ratio: 1.33:1 | Length: 88mn
Bdrip H264 Mkv – 782×576 – 29.970fps – 1.69gb
https://www.imdb.com/title/tt0141361/

Two brothers grow up and marry sisters from the same family, and both couples remain close. When they all partake of a new sex potion, they become even closer.

Innocent Taboo (1986)