The 28-year-old rapper and the 'Keeping Up With the Kardashians' star dated for three years up until they called off their engagement last year before Kylie started dating Travis Scott and later welcomed their first child.
But speculation arose as to the paternity of Stormi and now Tyga - who shares five-year-old son King Cairo with Blac Chyna, who is the mother of Kylie's niece Dream - has taken to Twitter to ask people to stop ''attacking people's families''.
Although not mentioning Kylie and Stormi directly, Tyga wrote: ''I've never said anything about someone else's child or family insinuating my involvement; and will never do so.
''Please, Stop spreading false stories and attacking people's families. I have nothing to do with any of that. People should be able to live in peace. (sic)''
Despite going their separate ways, Tyga recently insisted him and Kylie still talk ''here and there''.
Speaking to DJ Akademiks and Nadeska Alexis on the 'Everyday Struggle' show, he said: ''You just get older, you get me? It was a relationship in front of the world, and that was it. She has her new life, I have my new life and that's it. There's no bad blood, no problems. We communicate here and there.''
Kylie had previously opened up about her split from Tyga, admitting she was too ''young'' to be in a serious relationship.
She said: ''There was absolutely nothing wrong with me and T. We'll always have a bond. There was no crazy fight.
''We decided, well, I decided, that I'm really young. I don't want to look back in five years from now and feel like he took something from me, when he's really not that type of person.
''The hardest part about having a relationship for me is just that it's blasted all over the internet. You have to hear about other people's opinions on who you're with. It's a lot.
Most of the time it's just not true. Like you have no idea what I'm like in a relationship, what kind of bond I have with somebody else.''
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