Some people just seem to get sexier with age.
Oh, and not just because she's a mother to 2-year-old Benjamin—moms are allowed to party, too. We're mainly thinking that Gisele's rumored bun in the oven might make for a more mellow birthday celebration.
With a body like Bündchen's, you can't really help but look at it a lot—and there are plenty of admirers keeping an eye out, bump or no.
Any which way she celebrates, though, we wish Gisele and her whole family (however many of them there are in a few months' time) a healthy and happy year.