Didn't want to derail the 80s Teen Sex Comedies thread, but the mention of Tim Matheson made me think of A Little Sex, directed by Bruce Paltrow (Gweneyth's dad). About Last Night... (with its two-headphones-one-stereo seduction scene) is probably the commercial apex of this genre.
https://www.youtube.com/watch?v=IMmpJ9bFLNo
See also, The Personals:
https://www.youtube.com/watch?v=gjhJI70M8hs
― too cool for zen talk (Eazy), Wednesday, 23 June 2021 15:24 (two years ago) link
https://www.youtube.com/watch?v=rGHDATIJIX8
― Josh in Chicago, Wednesday, 23 June 2021 15:26 (two years ago) link
And of course, "Risky Business" is on its face an '80s yuppie sex comedy, but it is a dark, subversive masterpiece that transcends the genre.
― Josh in Chicago, Wednesday, 23 June 2021 15:27 (two years ago) link