Sexual Relationships
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Is it wrong to engage in a sexual relationship with a stepbrother or stepsister?

Greg and Marcia Brady, television stepsiblings
Greg and Marcia Brady, television stepsiblings

Incest - having a sexual relationship with a person closely related by blood - is a virtually universal taboo. A pregnancy which occurs as a result of incest has an increased chance of producing a child with genetic defects. Such a relationship also has a potential for allowing someone to use a position of trust to take advantage of the intended sexual partner (as in a parent-child or aunt-nephew relationship.)

But a stepsibling relationship has NO increased risk of genetically defective children and a low likelihood that someone would be using a position of trust. A stepsibling relationship is not forbidden by any religious laws or edicts, and in the US, a stepsibling relationship is legal in every state except Virginia (where it is illegal even if your parent and step-parent are subsequently divorced.) However, some people think it is distasteful if the two partners are living in the same household.

The harm that I see is that if your relationship with your stepsibling ends unpleasantly, there is the potential for a rift in your family, and future family gatherings are going to be uncomfortable for a least some of your family members.

I've never had a stepsibling relationship and I don't know that I would ever do that if I had the opportunity, but I'm not sure that it's morally wrong. What do you think?

Yes, absolutely wrong!
Vote A
Only wrong if any of your parents are still alive
Vote B
Only wrong if either of you is below the age of consent
Vote C
Only wrong if you are both living in the same home
Vote D
Something else that I'll explain in a comment
Vote E
Select gender and age to cast your vote:
Girl Guy
0 3

Most Helpful Guys

  • I wouldn't know what to say honestly, because I don't see this as a really clean-cut situation. If the step-siblings just met, they are grown-up and did not get raised together, I would just see that as weird but somewhat happy coincidence.

    If they got raised together, and the sibling bond was long established, that would be definitely weirder. However, given the lack of genetic relation, I don't really see anything wrong or immoral with that - although I think it can be quite shortsighted in my opinion, especially concerning public opinion. To be honest, I'd be more perplexed/revolted by a someone having a relationship with their step-parents, more than step-siblings.

    As an aside, out of all people my mother "jokingly" made implications that since I spend time with my father's widow (not a stepmother since she didn't raise me) and given that we don't have a big age gap, I am "99%" having a relationship with her. Just to make this clear, my wife is fine with me sticking around especially because my half-brother needs a father/big brother figure; and likewise his mother needs a man (yes, not politically correct I know, but that's fact for her) to help her handle things and support her.

    Monica says my mother is jealous and she's not surprised - she says she probably sees this as the same woman first "stealing" her ex-husband, and now her son.

    • I think Monica's assessment is probably 100% true.

  • What about step siblings that got together before they became step siblings? Cause that happens more than you think.

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What Girls & Guys Said

5 37

  • I've noticed in porn that step relations are often used as a loophole to get around incest concerns in much the same way hentai is used to get around child porn laws.
    So I'd say while technically legal it's not morally right

  • Yeah, that's disgusting. Even if they aren't your blood siblings, they're still your siblings. Only mentally ill people would do that. Same with the whole "sleeping with your cousin" crap some people approve of.

    • Hmm so my best friend, who married his wife before their parents met, fell in love, and married are disgusting? He was married to his wife for 5 years when he found out that his dad and her mom got together and got married after meeting at a family gathering.

    • I'm not going to get into an argument about virtual incest. I said what I said and I'm sticking by that.

    • let me ask you this then. What should he and her have done when they found out that their parents had married?

    • Show All

  • for me it's not right...

    steps, are family... and we just don't do' family around here...

  • I don't think it's wrong at all unless one person in the relationship is an adult and the other is a minor. It's not incest.

  • Though it is legal in most places, and safe from a genetic standpoint it’s just a little weird for me.

  • Having sex with a step-sibling is wrong... it's taking advantage of a family member. It has nothing to do with genetics or possible abnormalities. It's placing a family member in a compromising position that they wouldn't otherwise be in.

    • But what if the step siblings got together before their parents even met? Like they weren't step siblings, until their parents chose to make them step siblings.

    • For example, my best friend and his wife got married way before their parents ever met.. But by your logic it's wrong.

  • The reason behind it was only to prevent inbreeding of close blood relative. Sense there is no blood connection its ok. If you believe that Adam and Eve are all our parents, then that certainly makes things complicated 😂

  • Nope, no blood relation. Long as they're both consenting adults, I don't rightly care

  • Only if you’re underage.

  • I doubt I would do it but I think it can be wrong and can not be wrong. If you grew up together (like met when you were both 10 and under or smth) Then I think its really weird even if you aren't blood related. But if you guys are in puberty and starting dating and met then I think its not bad

  • I bet this happens more than ypou think /

    • There's a reason why I asked the question!

    • I bet that people create these blended families with unintended consequences.

  • Well, you don't have to worry about mongoloids!

  • Well just because something is legal doesn’t mean it’s right. Personally I find the whole step sibling thing to be weird and morally wrong.

  • Even if your not related by blood that's still super weird

  • Wrong!

    But the psychological kick from from doing the wrong thing! Breaking the rule! And combining with sexual desires brews the perfect product to huge product demand of porno industry today!..

  • They are not close genetic relatives, so there is nothing wrong with such a relationship.

  • https://www.youtube.com/embed/dYufE1lyuUY

    Sure if you want cyclops babies

    • Actually, there is NO increased risk of birth defects from step-sibling matings. There is no blood relationship whatsoever, and the incidence of a step-sibling sharing a recessive gene for a genetic defect is no greater than the odds in a random pairing.

  • Wrong is wrong, now.

    Until God commanded against it, it was not incest. It was just marrying a close relative. It is undeniable that God allowed "incest" in the early centuries of humanity. Since Adam and Eve were the only two human beings on earth, their sons and daughters had no choice but to marry and reproduce with their siblings and close relatives.

    see more in Leviticus.

    • Adam and eve were born perfect, due to the fact they were made by God. Nowhere does it say they were the only ones on earth as a human. Mitochondrial Eve and Nucleic Adam is what they were talking about.

    • The Biblical prohibition against incest does not forbid step-sibling relationships (nor does it ban first cousin relationships.)

  • My old boss married his step sister

  • Human species wouldn't be here asking if its wrong, if they never did incest. Neither would they be here asking if its wrong if they continued to do it. There must be some legal understanding that its totally moral for survival in the bible it mentions this with lot after an attack by God on Sodom God forgives lot because for survival you can contravene the commandments.

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