Chris Brown and Karrueche Tran met for a secret rendezvous last weekend, hooking up for a "hush, hush" date at his California estate.

A source tells Hollywood Life the lovelorn pair met for a clandestine gathering Saturday night where the "Loyal" singer sent his personal driver to pick her up in a "pimped out luxury SUV."

From there, details become rather sketchy as the source adds, "Neither one of them is telling many people about what's going on between them. They just don't want the glaring spotlight on them right now. It's all very hush, hush."

Even that comes as a hard earned lesson for the two. The last time they were publicly together ended in a screaming match at a Hollywood party where they came across one another. By the end of the night, police had to be called after Brown showed up at Tran's house uninvited and intent on speaking with her.

The two split earlier this year after it became public knowledge Brown, behind Tran's back, had fathered a child with another woman. Through it all, Brown has insisted he wanted to rekindle things, while Tran had vowed she was done with his cheating ways.

More recently, she seemed to be softening, recently telling radio host Ryan Seacrest there was a chance she may take him back.

"Us getting back together . . . I can't say," she said. "I don't know what the future holds,"

Given that the two have recently been rumored to be regularly exchanging steamy text messages, their apparent reunion doesn't come as much of a surprise to many of those closest to them.

"Chris gets her juices flowing like nobody else," a source said. "He's so passionate and emotional and they had the most incredibly sizzling sex life ever. Other guys just can't measure up. Despite wanting to shut him out they have been texting once again."