I agree with Oz. For me, sodomy is just sex, plain and simple. I enjoy anal sex, so I don't "submit" to it. Hell, I have even been known to initiate it. On the other hand, if I was topping a submissive male and decided to take his virgin ass, that would be a submissive act for him. Once we discovered whether or not he enjoyed it, I could then decide if any further sodomy was just sex or whether he was submitting solely for my pleasure.