Mind you, this isn't another comeback. In fact, Britney's been back to her old self for a while now. She even graced the cover of Women's Health last December!
Photos like these are the reasons why we keep on forgetting that she's a mom of two.
Sexy photos aside, Britney's taste in underwear is actually really nice. If you want to get a hold of them, click here.
We're so glad you're back in our world, Britney. Congratulations on your new underwear and swimsuit line!