[scene request] blonde and brunette lesbian scene in a hot tub from 70's peepshow loop

I know this is a long shot, but I've done lots of manual browsing with no luck yet. I am looking for a lesbian scene from one of those old-style loops. It didn't have its own audio, but someone had dubbed over some funky 70s porn music.

There were two girls - a rather buxom pale-skinned, long-haired brunette and a shorter, skinnier tanned blonde. They were in a large hot tub and took turns licking each other and fucking each other with a vibrator. Pretty sure it was from the 70s, but I suppose it could also have been very early 80s. But either way, it was an old-style peepshow loop, dubbed over with 70s sex music.


It was a bit reminiscent of the second half of this clip (starting at 7:32), which is the closest thing I could find to it.
 
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