Keke Palmer says she politely declined to take a photo with an overzealous fan — but even when the message was clear … still had her personal space violated.

The actress detailed an upsetting story on social media Saturday, describing how a girl kept pressing her for a pic … but apparently wouldn’t take no for an answer, and hit record instead when she got denied.

To that KP writes, “No means no, even when it doesn’t pertain to sex. I was at the bar the other day and this girl asked me three times for a picture and I told her three times nicely that I did not want take one with her. She still preceded to film me against my will.”

She adds, “If I went off on her I would’ve been wrong, so I just nervously laughed while my privacy was invaded upon.” Unfortunately for celebs, this is true — if you’re out in public, you’re fair game for anyone with a camera … even if it feels invasive, like this clearly did.

Keke further addressed it on IG … “Clearly I’m still upset about it cause I hated that I smiled, but that is my defense mechanism to laugh or joke in an uncomfortable situation and it misleads people every time. Literally I could be wanting to scream, and on the outside I’m still performing. The fact that I tell people no at all is therapeutic progress for me lbvs.”

She goes on to explain boundaries are hard for people who defer to people-pleasing or who don’t want to steer into conflict — which she says isn’t a good practice, but a real struggle.

Here’s the fascinating thing about this … Keke has very publicly dealt with this exact sort of issue before, albeit in a much more insidious setting — at least based on what she claimed.

You’ll recall … she accused Trey Songz of “sexual intimidation” after he allegedly coerced her to be in a music video of his against her will — to the point she claims she had to hide in a closet from him … something Trey later downplayed and seemingly denied on social media.