V: The Hot One (1978) (Better Quality)
The girl with the short brown curls is the standout here — slim build, wearing a ring, clearly into it. She starts off in an office chair, fully clothed, then switches to a bedroom scene where things get physical. She gives a long, messy blowjob with her hand stroking the base, head bobbing fast. After that, she gets flipped into doggy — back arched, ass up, taking deep strokes. Camera stays close on her face during cumshot, catching every gulp. Lighting is low throughout, mostly dim indoor shots that keep it intimate but still clear enough to see the details.