Last summer my girlfriend agreed to nude model for a buddy of mine and myself. I couldn't believe how hot it was to see her posing for another guy's camera and it was soon obvious that my girlfriend was enjoying herself, too.
She'd arch her back, twist, turn for the camera and then strike a pose. She would giggle and prance, "Yeah hold that," we'd say when we saw something. Click.
The more she changed poses and more we said, "yeah, hold that," click, the more uninhibited she got. She'd lean far forward so her breasts would hang down, she'd bend over, flashing her pink folds. "Yeah hold that." click click click.
I could see she was getting wet, as turned on as we were.
She cupped her breasts. click click.
She pinched her nippes. click click click.
She inserted a finger into her mouth suggestively.
"Yeah, hold that"
We never told her to stop or not to do anything. The click of the shutter was permission to keep going.
It's hard to say exactly when it happened, but to make a long story short, at one point she was on her back, her legs spread and her hand rubbing herself. She was no longer listening to our cameras, but lost enitrely into the bliss of the moment.
We continued to click away until she came.
With a smile, her face flushed, she turned as asked if we'd gotten what we wanted.