Mendeecees Harris may be serving time behind bars, but he's somehow still involved in drama here in the outside world.

The incarcerated reality star's sister recently took to Instagram to slam one of his baby mamas for failing to take their son to see him in prison, and let's just say she had a lot to say.

The Love & Hip Hop: New York star's sister went on an IG rant calling out Mendeecees' baby's mother Sam, saying she's "absolutely and most positively wrong" for refusing to let their son see him in prison. She even threw in there how much her brother helped Sam out when she had nothing.

Take a look at her strong words, below:

The post that started it all, though, was made by Sam, who stood by her decision to not take their son to see his father locked up. She said she wants him to be a "better version" of his dad.

So much drama.

Get the full scoop on another Love & Hip-Hop couple's paternity issues on Wendy Williams, above.