Blac Chyna is set to marry Rob Kardashian pretty soon, but she's been throwing out cash to the last person you would probably suspect — a famous ex who also happens to have ties with the family.

According to Radar Online, Chyna has been sponsoring none other than her baby's father Tyga on the low for a while.

"Blac Chyna has been making mysterious payments to Tyga," a source said. "Tyga is always pleading for cash, and he's been hitting Chyna up for loans on the quiet for a while now."

Just last week, it was reported that the rapper was also being sponsored by his 18-year-old ex Kylie Jenner during their relationship, so this seems to be a thing for the "Rack City" MC.

"Tyga and Blac have a weird relationship, even if it's stormy, they still talk every day about their son, and there's no doubt there's a huge soft spot on both sides," the source continued.

So, how much is Chyna gifting Tyga on the low? It's reported that it's summed up to "thousands of dollars at a time."

The source continued, saying Tyga's become notorious for asking for handouts, and seeing as Chyna's reportedly been "burning a hole in Rob's wallet since the day they met," per the source, this may cause a problem in the future.

See how Chyna's husband-to-be spoiled her for her birthday with BET Breaks above.