Well that depends; did his first sexual experience involve him being anally penetrated and humiliated? More importantly, are we talking about a first sexual experience for him that was in fact molestation and rape or are we talking about a willful and deliberate experience of a young adult? Those are two different things. The first being rather serious, of course. I won't play Dr. Freud, but I will say that early childhood experiences can inform part of our sexuality/sexual identity and that a fetish can be born out of past trauma - the wrestling with and trying to control a past shock or wound.
But let me also say this critical part: if your man is 100% comfortable with his sexuality, that is to say he isn't concerned with what he likes or obsessed with trying to uncover why he likes something -then who cares. I truly believe that. This doesn't mean he shouldn't work on healing wounded parts of him, but if this specific ass play and humiliation routine is an enjoyable and stress-less way to express his desire- more power to him.
What's important is not if he's 100% hetero, but that he works to be 100% emotionally healthy. That may or may not include you guys looking deeper into his butt. Dig it?
Why does anal penetration need to be humiliating to a man? It is ok for a women to receive anal sex but not a man? Only women can enjoy it but if a man does he is gay?
Anal penetration can be quite arousing for a man. It is the way to be able to stimulate the prostate which make for some mind blowing orgasms.
I am curious is he humiliated by it or do you think it is humiliating?
HE is the one that feels guilty about his level of kink. The penetration thing is legit, and I have no prob with it. But I wondered why he does...know what I mean?
Maybe he has homosexual tendencies and he is denial of them and it is making him feel guilty?
One of my best male friends who is hetero had and has some gay tendencies. For a long time he felt guilty about this and denied it. As he matured he realized he wanted to see what it was like to be with a man. So he went for it full out and had an experience without guilt. He enjoy it but realized he preferred women. Even now he is not opposed to being with a man but it doesn't have the same desire as before.
It is kind of ironic I am dating a guy now who has the same feelings towards men but has not acted on it but he is very comfortable in his own skin.
Sounds like maybe your guy should talk to someone.....
Lots of straight men like being anally pleasured--licked and penetrated with fingers and sex toys. I know I do. I like having my bottom bitten and spanked too, sometimes with a bit of role playing. Amit's answer is right on the money. If the guy is happy with his sexuality, there's no problem here. If he's unhappy, his ass fetish isn't a cause. It isn't necessarily about sexual orientation.
That's really cool. What if your woman doesn't like doing that to you and ya can't seem to meet halfway even through counseling? It sucks doing it on your own.