I’m not into anal at all but I can tell you that sitting in that chair with that position and hard cock being forced to point down between the legs would make it VERY VERY easy to orgasm for anyone who’s cock gets very hard and veiny naturally. Some people have softer cocks and some have the rock hard throbbing kind and I have one of the throbbing hard kind and I would not be able to sit like that for long especially if somebody touched the cock or teased it from underneath