First, I don't have the image if it's the one I'm thinking of, sadly, and second, not sure if this the same one, but sounds close to it.
The one I am thinking of was black and white, dark shirt/top, solid color (short sleeves?, not a tank etc), with I think white shorts. Short hair, just less than shoulder length, with the bottoms curled up. I note you mention dark hair. The one I am thinking of had "light" colored hair, or light to me, meaning it wasn't raven/black. darker than her skin (caucasian), but lighter than her top. (probably light to medium brown based on B/W photo, maybe sandy blonde). Showed a lot of thigh. I remember the woman either sitting, or at least facing, "side saddle" vs the camera, in that her legs were pointing to photo left (right?) rather than straight ahead, while her face was mostly angled at the camera, though not 100% full on. I think her legs were crossed, or partially so
I think she was holding the pie in the "clean" pic. I actually think I saw the clean pic multiple times before realizing there was an after show
I came across it on Hurley's images/finds page. So this would date it to no later than 2005 (and that's being ultra-conservative, my guess is I first saw it in 2001), just to eliminate more modern possibilities
I can't remember the name. This may be totally off, but I swear it had some alteration of "Bs" in the name, and perhaps ended with "Club". Betty Buckners Club? Becky Bettners Club?
I've tried searching at various points with no success. I'd be very interested in seeing it if someone has it
My undying gratitude to hoffa73 and SlapstickStuff Rich
edit. here's a different version of the same after pic. While smaller, it does seem a bit clearer / fewer artifacts and slightly different color grade from the one embedded above and the discogs one (more "blue" than orange) in case anyone cares for this
This was from the band's FB page. Sadly, no clean pic there that I could find