Casper Smart must really be smashing the breaks off J.Lo‘s cakes!

According to sources, the 24-year-old back-up dancer has been driving around in the pop star’s Bentley as of lately.

And he hasn’t been using the pimped-out ride (pictured above) just to chauffeur Jennifer wherever she wants to go. Apparently, he also gets it for his own personal use! (This is in addition to all the vacations they’ve taken together recently.)

Damn … has this young blood gotten “Jenny from the block” sprung already?!?

[TMZ]