'My brother is copping a lot of heat, people are talking a lot of s***, you know,' she said in a Snapchat clip.
'First of all you don't know my family, you guys weren't there and you don't know the full f***ing story,’ she continued the rant.
'So before you f***ing start running your mouth, maybe if you get all your f***ing facts right and stay tuned to the end before you start f***ing dropping bombs.'
Cyrell rammed her point home on Instagram, sharing a picture of herself giving Nic the side-eye.
'Your family will always know what's best for you. They will see things before you do. Because sometimes we are blinded by the truth,' she captioned it, adding '#Ilovemyfamily'.