There are some. Here are a few of my favorites: bed, shower, tub, park, cinema, sauna, forest, garden, lake, beach, train, plane
The bed. Is most comfortable, you can best relax and many positions are possible.
There are some places. Bert Kkar number 1, sofa, dining table and intermediate shower. For example, I love it on my ballet rod, because I can take my leg nice and get deep from behind