Interesting that Dave Cannon was fucking the blonde and Bridgette; too bad there wasn't another dude in the scene with a big cock fucking Bridgette's brains out.
The blond also remained me of Rhonda Jo Petty, in fact, I think it was an identical costume to the one Petty wore in the dom scene from "1001 Arabian Nights, Part 2", in that amazing scene with Francious Pappion (sp?). The guy in this scene is David Cannon, with whom Bridgette Monet worked occasionally exclusively.
The blonde is Jane Sikes, AKA Lynette Sue. She did only 3 films, according to the IAFD, between 1980 & 1981. Curiously, Bridgette (near the start of her own career) was also in all three of them, though I think this was the only scene they did together. Perhaps they were friends, or lovers, who came to casting tryouts together?