Jennifer Lopez turns 43 today and her live-in himbo Casper Smart is, of course, faced with the question: what do you get the girl who has everything? Unless he’s functionally retarded, the answer should be an engagement ring, but more on that later.

J.-Lo and Cassie hit the town last night with Casper looking like he’s playing dress-up in daddy’s clothes and Jen proving that some middle-aged people can pull off leather pants (don’t try it at home). So the celebration got under way a day early, but many are speculating that Casper is planning a big surprise for Jen’s birthday dinner tonight. The two have been dating for nearly nine months, Jen’s not known for moving slowly, and Casper must be dying to lock this meal ticket down.

Don’t be surprised to hear an official engagement announcement in the near future.