Well, a couple of you asked, and so...
This lady and I shared some magnificent times together, she's the mother of my children and we have mutual respect for one another despite no longer being together. A lot of women change in appearance. My ex hasn't, same shape, size, hair colour as she is pictured here from 30 years ago. For that reason I've blurred the photos. There's no reason to embarrass her, as she'd still be instantly recognisable to anyone who knows her now, even from 30 year old photos.
Keeping it on topic, my experience was that it was damned hard to get her to pose the first time, but when she'd seen the photos, and had me talking her through what it was I found so damned attractive about her, she became open to the possibilities of photography, and would pose when asked. To my regret, I didn't ask her to pose more often! Probably because I was heaping kisses on her naked body the instant she was naked. I didn't want to waste time taking photographs too often!
Like I say, I regret it now.
As you can see, back then it was a case of 'keeping it all natural', my preference from the first time I ever saw a pussy, right until now.
Anyway, I guess some of you are right, even if not 'the very first one', the photos are definitely amongst the first ones, the few we took on an instant Polaroid camera. We'd later switch, like everyone else, to digital and could view them on screen, in better quality and often 'in action' shots!
As I mention in a post above, the bath shot was taken on 35mm film and handed into the chemist for development. You had no way of previewing what you'd taken, so how much boob (or anything else) that was in the photos was a mystery until you collected your photos. But even my shy lady had no qualms about posing in the bath for the family album, of handing the roll of film into the local chemist and subsequently collecting the photos. It was how we did it 30 years ago.
For some of us of a certain age, many ladies' 'first naked photo' will have been through a more public process of being developed.