“We talk about everything and somehow, I missed that all these years.”
We recentlyaskedtheBuzzFeed Communityto share a shocking secret they learned about their sibling.
Here are some of the things they revealed:
Note: Some submissions are from thisReddit thread.

My sister recently confessed that she would sometimes climb over the bookshelf and then poo on the floor.
Even she has no idea why she would do that!"
“He’s been stealing money from my mom for years to fund his one to two-pack-a-day habit.

I know he tries to find my mom’s money stash.
He thinks he’s sneaky, but it’s pathetic how obvious he is.”
u/FuckYeahGeology
3.

“I lived with my siblings since I was adopted at the age of 3.
We were very close and always made sure to support each other.
u/BritDontCare
5.

“I just found out my sister got married three years ago.
She never posted about it or told anyone.
I asked twice if she married her boyfriend and was told, ‘No.’

My parents didn’t know either.”
“Our parents still give her money.
She makes over $100,000 but is always ‘broke.’

She’d be mortified if she knew I knew.”
u/daintyladyfingers
7.
“My sister is 20 years younger than I am and has a different mother.

I shared her sister’s picture, name, and location with her in 2019. u/Zodiacinjazz
9.
She tried to talk me into co-signing a massive loan for her.
It’s wild what money does to people.

I’ve been the only grandchild involved for the past 10 years.
She was always ‘too busy.'”
“She’s a porn star.

I found out the hard way.”
u/Bbeezy
11.
“My brother has genital warts.

I found his medication/topical for it one time…”
u/Chicken_Pine
13.
He’s struggling mightily in school, dealing with mental health concerns, and getting bullied at school.
It was a very high-risk pregnancy, and he almost didn’t make it in the first place.
As annoying as my brother is, I can’t help but feel so bad for this poor kid.
None of this is his fault.
“I have two brothers with the same name but they are not related to each other.
One shares a mom with me and one shares a dad with me.
I found out they were each other’s first gay experience.”
kendrahicks1
15.
“I know my brother is a sociopath.
He has everyone else around him fooled.
I’ve seen him for what he is, years ago.”
“I’m a visual learner and my sister LOVES to share her sexual exploits with me.
The one that took the cake was when she told me that she had a clit piercing.
What the hell?!
I’m flinching typing that.
I haven’t heard another story after that.”
Portia, Nebraska
17.
“He doesn’t know I took and read letters he had written to his future self.
I think he forgot but they’re hidden away and I plan to give them back to him.”
“My brother is 13 years older than me, but we still had a close relationship.
He got married for the first time when I was 12.
She was an amazing woman.
She and I became close as well.
He also stole $200,000 from our mom and tried gaslighting her about it.
I’ve lost all respect for him and we haven’t talked in a long time.
I miss my brother.”
artemisrwill
19.
“My sister doesn’t likepickles!
We talk about everything and somehow, I missed that all these years.
All the pickles I could have eaten… just gone forever!”
Note: Some responses have been edited for length and/or clarity.