Tyga, Blac Chyna and son King

While he continues getting close to Kylie Jenner, Tyga’s relationship with his baby’s mama Blac Chyna seems to be deteriorating.

According to TMZ.com, the Los Angeles rapper plans to file legal documents asking for primary custody of their 2-year-old son King, claiming the former stripper is an unfit mother.

Blac Chyna was partying with newly single Amber Rose recently, both appearing in an Instagram video twerking on all fours… and then later, hitting the club together.

Apparently, Tyga saw this and became alarmed, believing that she parties too much and does not want his son raised by nannies.

The former couple doesn’t have a custody order, but Tyga wants to change that so he has their son more. She currently takes care of King the majority of the time.

Blac Chyna has not commented on the matter.