This is seriously, like, the millionth time a chick has accused him of being unfaithful behind his girlfriend's back!

Tyga has allegedly cheated on Kylie Jenner again, this time with a Brazilian model named Annalu Cardoso, she confirms exclusively to Us Weekly.

The pair met on a music video shoot and reportedly began texting in December 2014 before engaging in secret hookups while he was very much together with his reality star girlfriend. "Tyga is very careful and waits until Kylie is out of the country," a source revealed. Clearly he's not that great at being sneaky!

The hip hop star was the one who reached out first, too!

"He would text her and ask how she was doing, casual conversation. Then he started asking her to send pics and to meet up. They hooked up a couple of times, but for the most part they would just hang out," an insider explained.

The 26-year-old didn't exactly attempt to hide his infidelity from his friends, either!

"She and Tyga wouldn’t be extremely affectionate in front of them, but she could tell his friends all knew that they were something. If someone else was sitting next to Tyga, they’d move so she could sit next to him," the source continued.

Tyga and Cardoso are no longer doing the deed, but that's only because he got paranoid that their secret could be exposed! "He used to find a way to see her, and that stopped. They never officially stopped seeing each other, but she’s stopped talking to him," the insider claimed.

He's a real piece of sh*t!