Imagine living with your significant other and their family, and suddenly you start noticing some strange behavior between your partner and their sibling. That’s exactly what happened to this woman, who found herself questioning her boyfriend’s relationship with his sister. She couldn’t help but feel that their closeness was borderline incestuous. But was she overreacting, or was there really something off about their bond? Let’s dive into the story.
The Living Situation

Moving In with the Family

Sister’s Odd Behavior

Lonely Sister’s Confessions

No Boundaries

Addressing the Issue ️

The Spooning Incident

Confrontation Time ⚠️

Overreaction or Valid Concern?

Is This Sisterly Love Crossing the Line?
This woman found herself questioning her boyfriend’s relationship with his sister after moving in with his family. She noticed the sister’s constant need to be close to her boyfriend, touching him, and even cuddling on the sofa. When the sister began barging into their room without knocking and the cuddling turned into spooning, she confronted her boyfriend about the borderline incestuous behavior. He dismissed her concerns, and now even his parents are acting weird around her. Did she overreact, or is there something truly off about this sibling bond? Let’s see what the internet has to say about this situation…
Sibling cuddling is bizarre, NTA for calling it out

Red flags in a relationship with a sibling? Run away!
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NTA commenter advises to leave rather than threaten the couple

Acceptance and understanding are key in different family dynamics
![Image credit: [deleted] | [deleted]](https://static.diply.com/9eeaa5f3-00fa-4a20-88c4-f0c604506e5a.png)
Sharing a bed with a sibling is okay, spooning is not

User questions if boyfriend lied about apartment move to see sister.

Different families have different levels of physical intimacy

NTA. Red flags and grooming concerns. Suggest therapy and moving out.

Tactless comment on boyfriend’s relationship with sister. YTA.

Red flag alert! Commenter questions possible mental illness and complex.

Defending close sibling relationship against ‘incestuous’ accusations

Defending boyfriend’s relationship with sister, criticizing double standards.

Physical intimacy boundaries vary among families. NAH for being uncomfortable.

Redditor agrees and advises OP to leave the situation. NTA.

Cultural norms or not, sleeping in the same bed is odd ♀️

Different families have different levels of physical affection. Let it be.

Girlfriend’s behavior towards brother is ‘borderline incestuous’ – NTA calls it weird

Accusing someone of i****t is huge. YTA for living there.

Doubts about the story, but if true, ‘very strange’. NAH

Accusing someone of i****t is never a good idea

Accusations of i****t can harm family relationships. YTA.

YTA called out for jumping to i****t conclusion
![Image credit: [deleted] | [deleted]](https://static.diply.com/b3140ab2-eaf5-4905-be61-91bcb57bcb3f.png)
Different cultures have different norms, but this might be excessive

Some families are just more affectionate than others
![Image credit: [deleted] | [deleted]](https://static.diply.com/d9be4c02-6bd1-4dfe-a122-001314cc84fd.png)
Don’t assume, get to know her! YTA for sexualising siblings

Sister’s behavior is concerning and boyfriend needs to defend you. NTA

Insecurity or i****t? YTA gets called out

Sibling bonding or borderline i****t? ESH, but relax.

Setting boundaries in a close sibling relationship

Uncomfortable relationship dynamics, time to leave

NTA commenter warns of red flags in boyfriend’s relationship with sister

Friends reference makes NTA comment on borderline i****t hilarious

Sibling spooning is inappropriate and disgusting according to commenter.

Siblings have different levels of intimacy, but communication is key.

Sibling affection vs. borderline i****t: where’s the line?

NTA calls out ‘epically creepy’ behavior with engaging Greek tragedy reference.

Sibling bond is strong, but spooning is too far

Sibling love is great, but not like that NTA

Dating a guy whose sister has a borderline incestuous relationship

Setting boundaries with adult siblings is important. NTA.

NTA for feeling uncomfortable, but cuddling with siblings is normal

A commenter shares their experience with emotional i****t and boundaries.

Sibling affection is normal, not incestuous. Boundaries vary.
![Image credit: [deleted] | [deleted]](https://static.diply.com/ce3f6414-07e7-44ae-9f10-5faf68c85fe4.png)
Sibling love is healthy, but boundaries are important. NTA.
![Image credit: [deleted] | [deleted]](https://static.diply.com/894bf2b9-b8b7-46ce-86db-edab56f5e1b2.png)
Sibling spooning is weird, NTA comment agrees

Sibling cuddling is okay if boundaries are respected. NAH.

Accept their closeness, they’re family. YTA.

Defending sibling affection, accusing OP of jealousy and hysteria
![Image credit: [deleted] | [deleted]](https://static.diply.com/b04f6ee4-d52a-4994-bb42-c922319ac9e2.png)
User calls out commenter for calling boyfriend’s relationship ‘incestuous’

Engage in conversation instead of being judgmental.
![Image credit: [deleted] | [deleted]](https://static.diply.com/5e585490-78db-4269-b03a-2bf11cb24917.png)
NTA assumed the worst without communicating. Talk to them first

Don’t shame positive sibling relationships! YTA

User accuses OP of being the a**hole and creating drama

Defending a family’s affectionate relationship with siblings, calling out the use of ‘i****t’ as an accusation.

Don’t jump to conclusions! YTA comment calls out assumptions
![Image credit: [deleted] | [deleted]](https://static.diply.com/9f5eb70a-0fd9-410f-9749-c9cc540dad92.png)
Don’t be a j**k and call sibling friendship ‘incestuous’

Jealousy and assumptions lead to accusations of ‘borderline incestuous’ behavior

Don’t shame someone for their family’s physical affection

Don’t judge their family dynamics. YTA for calling it incestuous.

Don’t jump to conclusions and keep it clean. YTA

User accuses commenter of sexualizing brother-sister relationship. YTA.

Leave that relationship ASAP, something weird is going on

Trust your gut and run ♀️ ♂️. The internet history says it all.

Sibling love is one thing, but this is too much

Boyfriend’s behavior is a red flag, even if innocent.

User defends brother-sister relationship against outsider’s criticism.
![Image credit: [deleted] | [deleted]](https://static.diply.com/4f91a275-9c66-4b04-baf5-8ace82d576a3.png)
Physical intimacy between siblings, even non-biological, is inappropriate. NTA.
![Image credit: [deleted] | [deleted]](https://static.diply.com/a66d66a8-d34b-4ef2-9e9d-7b1553591a12.png)
Friends fans relate to comment about ‘borderline incestuous’ relationship.

Partner’s ‘borderline incestuous’ relationship: NTA, leave or accept
![Image credit: [deleted] | [deleted]](https://static.diply.com/ec3befed-b76c-4aaf-8dbc-d33735fe02ee.png)
Last Updated on February 16, 2024 by Diply Social Team