Confessions: I got my boyfriend a DNA test and it revealed his mum's secret relationship

A woman has told how an innocent birthday gift for her boyfriend accidentally uncovered that he has a different father to the one he grew up with.

She explained how the family's situation has been completely turned upside down after the test revealed that he also has a half-sister.

After tracking her down on Facebook, the man was shocked to learn that he had a new family - rather than just the mum and dad he grew up with.

And with credit to his parents - they had no idea that this was the case either.

While on a break, the man's mum had a fling with his biological dad but reunited with her original partner after conceiving.

For better or worse, they always assumed that she fell pregnant from him and not the fling.

Now the truth has been uncovered - thanks to his woman's well meaning birthday gift.

She said: "So this happened back in August but he finally got the results back a few weeks ago. But brace yourselves, this is some soap opera s***.

"Turns out he has a half sister and aunt he never knew about.

"Both the aunt and sister are on his dad's side of the family so... he spoke to his dad.

"His dad didn’t know the aunt, although she shared the same last name as his family and his dad never knew he had a daughter but the timeline of events checked out.

"Next, my boyfriend went to Facebook and searched the hell out of his half sister. She looks EXACTLY like his dad.

"Needless to say, his dad was shocked. They were trying to figure out how to tell the rest of the family.

"My boyfriend didn’t want to message her first because she may not know she was adopted or if she didn’t know who her real dad was.

"This week, his half sister finally messaged my boyfriend. She asked if he was adopted.

"He proceeded to tell her he thought SHE was adopted because she looks exactly like his dad.

"Then she said HE looks exactly like HER DAD! Needless to say everyone was confused.

"They send pictures of their fathers and my boyfriend did indeed look like her dad.

"But there’s still the question of, who is the aunt?? And do the half sister and aunt know each other?

"Yes. Yes they do. The half sister said the aunt is her aunt. Yet, my boyfriend and aunt share the same last name??

"So now my boyfriend is asking his mum if there is any way he has a different dad. She is adamant that he does not.

"Until my boyfriend sends the picture of his half sister’s dad and his mum absolutely recognised the man.

"Turns out, my boyfriend’s dad and mum were on a break and his mom hooked up with this man.

"His mum and dad got back together almost immediately after my boyfriend was conceived so they assumed my boyfriend was the product of their relationship and not her fling. They were wrong.

"Turns out, my boyfriend is the product of his mum’s fling and has a dad he never knew about.

"He also has 4 new half siblings, one aunt, one uncle, five cousins, grandparents, and two nephews. All who he never knew about.

"And get this, one of his new siblings was born the SAME year as him and has the SAME name!!

"As for the aunt who shares the same last name as my boyfriend, we’re not sure if it’s coincidence or if she’s somehow related to his “adopted” dad’s side of the family."

She added the family were taking the news "surprisingly well."

"My boyfriend’s “adopted” dad is such a saint and is encouraging my boyfriend to get to know his bio dad and family," she added.

"My boyfriend has since been communicating with his bio dad and two half siblings and it’s going great.

"They seem like such a kind, loving, and welcoming family.

"Although this was such a shock for everyone, it’s turning out to be the best case scenario for such a strange situation.

"So yeah, I essentially gave my boyfriend a whole new family for his birthday. You’re welcome boo!"

One person had some sage advice for anyone reading this woman's story on Reddit.

They joked: "I’ve seen enough of these TIFUs to know to never give anyone in my family a DNA test kit."

Another agreed, replying: "It is shocking how often stuff like this happens.

"I did an ancestry just to see ethnicity stuff, didn’t think in a hundred years it’d dig up family drama.

"But whaddya know, out of the blue a first cousin I didn’t recognize messages me looking for his mum.

"Asked my mum if my aunts had any sons, she said no. I messaged them on FB and sure enough one of them had a son when she was like 16 and gave him up for adoption.

"And had been looking for HIM for years. Bam.

"I don’t really know either of them and just by chance taking a DNA test I was able to reunite them. What a weird feeling."