"John Stag" (and we all know who that is) credited as assistant director in this 1984 vid of a sexually liberated family (the "Osbornes"!), where both daddy and mommy are pretty clueless about what goes on with the kids. Sadly, what shows up on screen doesn't quite live up to the talent that made it.
Mom 'n' dad (Karen Summer, Woody Long) get it on in doggie, reverse cowgirl and mish in the opener, which is intercut with daughter Cara Lott's masturbation fantasy. Son Marc Wallice has a thing for his neighbor's ass (Dorothy Onan) while mom and Cara have little playthings of their own (Lynn Ray and Lei Petite, respectively). All three of the aforesaid scenes are intercut, severely diminishing the heat, which wasn't overly high to begin with. The Summer/Ray pairing morphs into a threeway with a guy, and Wallice just keeps fucking away, depositing his juice (twice!) just as Lott and Petite turn on a pair of guys with a striptease, then mount them in both directions before turning the whole thing into a fourway round robin suck-a-thon. And of course brother and sister have to do the deed in the finale, and mom, after peeping on them, solos on the couch, all of which Daddy Doesn't Know.