Is it wrong for a man to have sex with his brother?

[FBM]

Identical twins have the same genome, wouldn't that be almost like having sex with yourself? Or siamese twins, if the other one controls the hand and the other one own's the willy...

No, I don't think it's wrong for two consenting adults to have sex.

What about father + adult son? mother + adult daughter?

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[borealis]

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[maiforpeace]

Identical twins have the same genome, wouldn't that be almost like having sex with yourself? Or siamese twins, if the other one controls the hand and the other one own's the willy...

No, I don't think it's wrong for two consenting adults to have sex.

What about father + adult son? mother + adult daughter?

None of that bothers me.

[Ronja]

But the species closest to us, Bonobo apes, have sex with just about everybody, almost like shaking hands.
I don't know if they have taboos about sibling sex. If they do, it's the only one that they have.

They appear to have a "taboo" against mother-son sex, and an interesting (likely evolved) behavioral pattern, which makes sibling sex between mature individuals quite unlikely.

When a bonobo female becomes adolescent, she typically starts to withdraw from the group socially and eventually walks away completely to find a new group where she settles. Adolescent males do not leave their birth groups, so for a bonobo male the only closely related female in his group likely would be his mother. And mother-son sex among bonobos is extremely rare (which is a remarkable repeated observation, seeing as bonobos otherwise have sex at the drop of a leaf).

I've read this in a couple of Frans de Waal's books, but here is an online source. The description of the adolescents' behavior (males tend to stay, females tend to leave) is on page 62: http://www.biozentrum.uni-wuerzburg.de/ ... sex_01.pdf

[borealis]

None of that bothers me.

Parents have huge impact to their children. Wouldn't there be a risk that the parent has been manipulative during bringing up the child?

[maiforpeace]

None of that bothers me.

Parents have huge impact to their children. Wouldn't there be a risk that the parent has been manipulative during bringing up the child?

Sure...but that risk arises in many more areas of life, not just sex.

[Rum]

I don't see a problem as long as neither of them get pregnant.

Now if one did...!!

[PsychoSerenity]

None of that bothers me.

Parents have huge impact to their children. Wouldn't there be a risk that the parent has been manipulative during bringing up the child?

Sure...but that risk arises in many more areas of life, not just sex.

And it's not wrong because there's a chance that the parent was manipulative, it's wrong if the parent is manipulative. - but then, being manipulative is still common in many relationships anyway.

[borealis]

None of that bothers me.

Parents have huge impact to their children. Wouldn't there be a risk that the parent has been manipulative during bringing up the child?

Sure...but that risk arises in many more areas of life, not just sex.

And it's not wrong because there's a chance that the parent was manipulative, it's wrong if the parent is manipulative. - but then, being manipulative is still common in many relationships anyway.

I'd say something being wrong and something bothering (which was the case we talked here) are two different things. Chance of someone being used tend to bother me. Sure there can be manipulation in many relationships, but the parent(/guardian)-child relationship is the only one where the same person has had a control of your entire life from the birth. People raised in isolated environment might not even know about any other way of life.

[mistermack]

I think that any parent/child sexual relationship is wrong, and shameful for the parent.

I can't think of any redeeming feature for it. Even adopted children. It's not the genetics, it's the ignoring of a basic human duty. I would cut their balls off. In a perfect world.
Not the child, obviously, as they are the victim.

But brothers or sisters, I can't find a victim, so I suppose there's nobody to blame.

[PsychoSerenity]

I'd say something being wrong and something bothering (which was the case we talked here) are two different things. Chance of someone being used tend to bother me. Sure there can be manipulation in many relationships, but the parent(/guardian)-child relationship is the only one where the same person has had a control of your entire life from the birth. People raised in isolated environment might not even know about any other way of life.

Ah right, I get you. But then - if you knew the people well and knew there was no manipulation it wouldn't bother you? And then if you hear a rumour of strange goings on in some distant land without knowing details or facts, it bothers you more?

I think the first line of defence against manipulation etc. needs to be left to other close relatives and friends. That might not always work, as you say, in isolated areas - but I don't like the idea of people being automatically assumed to be doing something wrong until they come out and explain themselves to the world.

[Hermit]

...consenting adults...

The nub of it for me. In situations where manipulation is involved, one cannot truly speak of consent.

[Warren Dew]

I mean, say both your sons told you they were gay. That might be bad enough.
But what if they were a couple?
I try to be logical, but hell, that's much much worse.

Or is it? I'm sure it is, but why?

I think if two brothers were to have sex with each other, it would be worse if they were not gay.

[mistermack]

I suppose sexual liberalism is like Sodom and Gomorrah to the fundies.
We were taught that those people descended into a pit of disgusting foul behaviour, but in today's world, they were just enlightened liberals.

Maybe the bible is coming true at last.

[Thinking Aloud]

I think if two brothers were to have sex with each other, it would be worse if they were not gay.

Why?