As a member of a drawing group, I'm occasionaly the model. Being an exhibitionist, I enjoy displaying my naked self, especially in front of people I know. Sometimes the women kid me that my average-sized penis isn't a lot larger, but it's all in fun. There's one woman in the group, Sally, who also takes a turn to model once in a while, and the jokes about her breasts are equally merciless, but still in fun. (Her breasts are beautiful by the way.) Normally there's a professional model, paid to come in from outside, but Sally and I do it for fun.
And it's the most fun when she and I model together. My wife and Sally's husband are both members of the group, and neither of them ever model. But they don't mind me and Sally on the dais together.
We just like being naked with each other. Sometimes the other artists pose us and sometimes we work out the poses on our own. It's easiest when we just take up the pose they suggest: hold each other, entwine our arms or legs, whatever. Really sort of tame, like they're afraid to push the boundaries.
But when Sally and I are given the freedom to make our own pose, we have fun. Maybe she'll lay back with her legs open and hold my face to her pussy. Or, the other way around, I'll lay back and she'll put her face alongside my cock. Or, she'll be on all fours with me behind with my cock tucked up either up along her asscrack or down, nestled along her pussy.
I like the quick 1- or 2-minute gesture poses the best, because the two of us can slide our bodies together and really feel each other. After a few of these, I can feel the wetness between her legs so we do a lot of poses with me between them. I'll sit on the floor and she'll stand over me with my face at her pussy or just below.