I can't quite visualize all the physics and physiology involved, so I'm hoping somebody with the actual physiology can help.
It seems possible for a woman to lie flat, face down, with her arm straight under her torso, and her fingers between her legs to pleasure herself. (Is the average arm too long for that?) But would it be comfortable? I mean, with her weight fully on her arm. Would the comfort of the position depend at all on breast size? Would it be comfortable at first but not for long? If so, how long do you think?
It seems possible for a woman to lie flat, face down, with her arm straight under her torso, and her fingers between her legs to pleasure herself. (Is the average arm too long for that?) But would it be comfortable? I mean, with her weight fully on her arm. Would the comfort of the position depend at all on breast size? Would it be comfortable at first but not for long? If so, how long do you think?