How about in front of a police station

There are a few secluded bays near to me and it might be possible for a quickie buddy wank there. Also, in some of the rural car parks.

I hear nude sky diving is a rush. Chilly perhaps. But the airflow around the private parts of both should be quite stimulating. Any qualms about flashing the world from four thousand feet?

I really loved nude SCUBA and snorkeling as well in the islands. Warm and you can use your own camera as well.

Then there's driving down the road topless while SO drives by and photos you from another car. Wind in your hair etc.

How about on a rope swing in the back yard or better still, in a public park.

Rent a trampoline and play in the back yard. It should provide some rather up and down moments for the camera and a good lesson in fluid dynamics.

I've always liked hiking in the nude. Fins a back country trail, strip down to your boots, pack, and a smile, then surprise each other around a curve in the trail with the camera.

Then, there's always nude dog sledding. A bit nippy but it puts some real erection into a ladies nipples. You'd look good in a fur hat, mittens, and boots, and little else.

More later. I'm getting excited about the possibilities for your next photo shoot just thinking about it. As always, I have a camera and would travel to take the pix. Love ya.