Genitally speaking

Rocket Jones has evinced a vaguely-unhealthy interest in a 1977 movie called Chatterbox, which, I must report, I have actually seen. (Worse, I once owned a copy, on one of those old RCA CED NeedleVision videodiscs.)

Actually, it's not as horrid as the synopsis suggests, although the premise is extremely silly. The young lady in question discovers her, um, gift at the conclusion of an indifferent bout of lovemaking: she is grateful to her geekish (and not in a good way) boyfriend, but the Box claims lack of satisfaction. Despairing, she rushes to a shrink, who sees her and Virginia, to give the Box a proper name, as his ticket out of this dead-end profession and into the Big Time.

It's really not all that bad, but it's impossible to describe with any degree of discretion, as demonstrated quite clearly above. The 1988 German film Ich un Er — Me and Him in its English release — is a variation on this theme, with Mark Linn-Baker, for some reason, playing a real prick.