My ex wife was never interested in any 'of that thing' until she was pregnant with our first child, when her sexuality and sense of adventure took a huge leap forward. At 8 1/2 months pregnant she agreed to be photographed naked, more from the perspective of it being a bit of a record of the pregnancy than for any naughty reasons. Our sex was hot, maybe the best period of sex we ever had in our marriage, during her pregnancy, and once she'd seen herself in picture form, even heavily pregnant, she decided she would pose nude for me (and me for her).
We didn't take any 'action' photos, and the Polaroid camera lacked a self-timer to permit the setting of such shots, but I did get a few lovely nude polaroids of her during this period, during and after pregnancy.
'Of course, you'll destroy them now we've looked at them'
'Of course'. I lied, while flipping her over to give her another session, so turned on was I by her sudden willingness to pose nude. I should mention, a second session and about six hours after this photo was taken, she was in labour!
The photos aren't great, not posed, just her lying or sitting on a bed, but I've kept them for 30 years
One interesting photo that I have is one I did take on the camera, of my wife and daughter in the bath, with pretty much full boob on display, as handed into the chemist for developing, something that would cause all manner of alarm bells now, but back then was pretty much what many of us did for nude or semi-nude photos. So here is her first ever nude photo. Not sure the others, sitting or lying on a bed, really qualify for inclusion in this thread, though. Unless you think differently.