Woman Refuses to Give Her DNA After Her Estranged Cousin Demands Proof They Share the Same Father

One 21-year-old woman thought she had perfectly compartmentalized her messy family tree, until a single social media photo brought her double life crashing down. Keeping her relationship with her father hidden from her estranged aunt was simply a necessary tactic to maintain her peace.

But when her secret was exposed, she suddenly found herself at the center of a bitter paternity dispute spanning two continents. Caught between a hostile cousin demanding a DNA test and a father with a deeply complicated past, she had to make a tough choice. Want the juicy details? The full story is right below.

Woman Refuses to Give Her DNA After Her Estranged Cousin Demands Proof They Share the Same Father

AITA for refusing a DNA test?

The foundation of this family tree was tangled long before the original poster ever entered the picture, setting the stage for decades of resentment.

Based on the title, you can tell that my family situation is pretty crazy. I (21f) am technically a revenge affair baby. My dad (47m) was married to my aunt...

yuck), but during their mutual divorces, my dad and my mom had a fling which produced me. There was a DNA test, and after I was proven to be my...

He didn't sign my cousin "Amanda's" (21f) birth certificate and went back to his other country (my dad has dual citizenship) to avoid child support for her. Since she was...

Because of all the drama, my mom and I were estranged from my aunt and Amanda. So, my aunt and Amanda thought for years that my dad had abandoned me...

Extending an olive branch often backfires when the other party holds onto an unearned sense of superiority.

My mom made it clear that I was free to seek out a relationship with Amanda once I was old enough to drive, but warned me that there could be...

I tried reaching out at 17, but she acted like she was so much better because she grew up in a two-parent household (my aunt remarried) while it was just...

So, I was able to keep my relationship with my father private until, I guess, Amanda or someone Amanda knew saw a picture of me with one of my paternal...

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I didn't want to put in or maintain the effort to lie, so I made a long text message and sent it to a group chat with several members of...

So, a lot of people just assumed my mom was doing it all on her own, when really my dad was sending child support and having a relationship with me.

Amanda and my aunt are now demanding that I give them my dad's contact info, his address in the country that he's in, and do a DNA test to prove...

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But here's the thing: 1. Amanda was formally adopted by her stepdad when she was 17. 2. I don't like the idea of giving my genetic information to a private...

4. My dad's side of the family knows about Amanda, and they don't seem interested in knowing her. 5. Amanda's still being pretty awful to me, so I don't feel...

Despite her cousin’s relentless demands, stepping aside let the adults finally clean up their own twenty-year-old mess.

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Update (two weeks later): Hello, just wanted to give a quick update. May give one more depending on how this ends. If it ends.

So here it goes: I told my cousin "Amanda" that she should do the Ancestry thing to see who she matches with, and that I'd pass along her info to...

I did pass along her contact info to my dad and told him Amanda and his ex-wife's (my aunt) intentions. As well as the news that Amanda was formally adopted...

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for any reason, and as he is a citizen through my grandma.

However, he did check with his lawyers, and he basically told me that he'd agree to doing a DNA test on the condition that my aunt and Amanda sign a...

My dad has made it clear that he's not overly concerned if Amanda and my aunt don't agree, but would prefer to settle this just in case of potential issues...

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I also spoke to my paternal grandmother (paternal grandfather passed away years ago), and she said that she's never liked my aunt, is glad that my dad left her with...

Given that my grandmother didn't even like me until I was about 3, this is in character for her. The rest of my father's maternal side seem to be of...

The explosive fallout between these cousins perfectly illustrates the long-lasting impact of intergenerational betrayal trauma. According to principles of family systems theory, the emotional shockwaves of extramarital affairs don’t simply vanish when the divorce papers are signed. Instead, they create a ripple effect that deeply impacts how subsequent generations navigate trust, loyalty, and family boundaries. Amanda’s hostility isn’t just about a paternity dispute; it’s an inherited defense mechanism fueled by her mother’s unresolved shame and the father’s literal abandonment.

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While the original poster’s desire to wash her hands of the situation is completely understandable, the reality is that secrets of this magnitude rarely stay buried forever without causing collateral damage. The healthiest path forward is for the original poster to maintain her firm boundaries, protecting her own peace from this family drama. Those caught in similar generational webs should seek individual counseling to process their complex feelings, rather than aggressively forcing relationships with relatives who owe them nothing.

Community Opinions

Reddit came in hot—nearly unanimous in their support for the original poster, with a handful of readers pointing out that the older generation is entirely to blame.

u/busyshrew I had a headache trying to keep track of who slept with who. Edit to add: regardless, it seems like the older generation made this mess. They need to...

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u/ChampionshipBetter91 Just FYI, if you are in the US... if Amanda's mother at any time before Amanda was 18 was using public assistance, it doesn't matter what she signs. The...

u/Forward-Two3846 So the aunt slept with her sister's husband and caused her child all this emotional  trauma and the maternal family is hounding OP because her mother and father made...

u/Street_Bar2304
There's a whole genre of reddit stories where the entire purpose is to see if redditors would defend a deadbeat dad and the answer is always yes.

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u/Solipsisticurge
I like these on occasion because I feel like my life has problems and drama but not so much in the face of this.

u/Basic_Bichette And none of them are remotely aware that paternity could be established with a fair amount of certainty via genetic genealogy, even with none of them giving DNA. It's...

u/wolfeyes555
I feel like I need a corkboard and some red thread to keep track of everything

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u/eggynack It's weird to me that the comments are apparently so gung ho about not providing DNA. Like, I get it in some regard. The OP does not have some...

u/arissarox
Yet another example of an affair not just hurting your partners.
The repercussions just ripple out forever.

u/scaldinghell
I’m wondering how the cousin ended up getting adopted in the first place.
Wouldn’t the dad have presumably already signed off his rights?

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u/mocha_lattes_ I'm just mad we haven't had an update yet if Amanda was actually her cousin or sibling. I read these when it came out and still waiting for that...

u/UnhappyTemperature18 All I'm seeing here is a family going out of their way to be s*** to Amanda for accidentally being born with ambiguous parentage? Like, even if "she acted...

u/Bedovian_25 Maybe OOPs dad isn't the father but to me, it's pretty weird for his response to be "If I am the father I'm perfectly content with the fact that...

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u/Fearless-Speech-1131 OOP sounding just a tad too smug for my liking. Also, the revenge bed-hopping between these people is confusing and trashy as hell. Potential grandma is evil. Only person...

u/Woland77
No one is born with an obligation to fix a mistake that involves their conception.

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And a few commenters reminded everyone that while the cousin's delivery was undeniably hostile, she is ultimately just another victim of a deeply messy situation.

Do you think the original poster was right to refuse the DNA test, or did she owe her cousin a shred of closure? And how would you handle being dragged into your parents’ decades-old revenge affairs? Drop your thoughts in the comments.

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