My bf has recently made it clear to me that there are moments when he gets uncomfortable when I ride him on top. He says when I go fast and bounce too high there is a chance that his penis can “bend” when I come back down. And then when I lean too far back he says his penis is unable to handle the angle. Or if I want to do it where I am leaning back with my arms holding me up, straddling him while he is sitting up, he says it’s uncomfortable for his penis as well when I start to glide in and out. He says he enjoys me on top otherwise, that I look really good doing it and it’s better if I go slower, which is hard on me since it’s quite a squat workout so I can’t last long. Is this a common thing among guys and if so, do you have any tips to make my riding more comfy for him?