new to the forum but i saw a scene as a kid accidentally in which the girl was skinny dipping in her backyard pool, and then her neighbor comes into her backyard and "asks to borrow a tool". after he notices she's naked, she invites him in, and then eventually he hits it from the back (not sure if it was anal) and periodically pulls out so she can blow him. that's all i remember, but i feel like the girl was a brunette and the guys hair might have been thinning. definitely 80's, as this was either 1990 or 1991.

been trying to find this scene for decades at this point!