Several years ago my then gf agreed to do a sexy photo shoot with an old photogragher that i knew. We did not discuss how much she would expose but agreed just to see what happened. She had several dresses to pose in and all would be done without underwear as she rarely wears it any way.
The old guy (in her late 60s, she was late 20s) started fairly normally but fairly quickly got her to expose tits and then pussy. Damn it was a rush. I quietly took a few pics of him taking pics! As few from the shoot below. More avail if people would like to see.