- Pamela Lara, from Houston, shared a snap of a letter from her brother on Twitter
- Note written by Jared Escamilla, 17, after he discovered they are half siblings
- He said she will 'always be my full-blooded sister' in touching viral tribute
- Letter encouraged others to share similar experiences from their own lives
A woman has melted hearts after sharing the emotional letter her younger brother penned after discovering they aren't 'full' siblings.
Pamela Lara, an 18-year-old dancer from Houston, Texas, took to Twitter to post a snap of the touching note Jared Escamilla, 17, had presented her with, along with a selection of her favourite snacks.
The heartfelt letter read: 'I just wanted to let you know how much I love you. I don't care what people say you are always going to be my full-blooded sister, you are the best thing that happened to me.
'I love you with all my heart, thank you for helping me on my worst and thank you for leading me the right way.
'I will always be there for you, just like you have always been there for me. I love you, with love your annoying brother.'
And the tweet quickly garnered 60,000 likes and retweets, and hundreds of supportive comments.
Pam told Femail: ‘My brother knew I wasn’t ready to talk about us not being full siblings, so he wrote it instead.
'Instead of breaking us apart, it made us even closer. He even tells me he feels bad for joking around that I was the adopted one in the family because I was different than everyone else.
'But despite all of that, I believe blood does not define family. And I have never seen him any differently.’Many people replied to the 18-year-old's tweet with gifs of people and celebrities, including Naomi Campbell, crying, as they struggled to contain their emotions.
Admitting it had made him well up, one follower joked: 'My eyes are sweating!' amid an influx of replies.
'I'm not crying you are', another added, while one wrote: 'That's beautiful. My blood brother ain't even that nice to me'.
It wasn't made clear how Pamela's brother had found out they weren't full siblings, but the tweet encouraged others to open up about similar experiences in their own lives.
Sharing her own experience one follower wrote: 'When my little sister found out our dad isn’t my biological dad she was so upset for me.
'She cried and held me like she was gonna shield me from it' (sic).