Let’s put aside our never-ending shock that Britney Spears is a mother of two and take a moment to marvel at just how grown up her kids are looking these days! The “Toxic” singer, of course, has two sons with ex-husband Kevin Federline: Jayden, 8, and Sean, 7.

Credit: Britney Spears on Instagram

We don’t get to see the mini-Spears very often (Mom’s got a tight-handle on all things media) but she did share a recent snap that shows us how big these two are getting! Born just a year apart, Jayden and Sean both celebrate their birthdays in September and by the looks of it, we wouldn’t be surprised if people sometimes think they’re twins!

Britney and her two boys posed out in the sun for this recent family photo. “What’s up summer!!! Where are my sunglasses when I need them? Lol,” Mama B captioned the pic, which helps to explain why she looks so squinty-eyed for the camera. Both blond boys look just like their mom, don’t you think?

The pop star, of course, currently calls Las Vegas home (hence all the sun) as she continues to blow up record after record on the Strip. Her “Piece of Me” show at Planet Hollywood is taking off big time, which is good news for the whole family!

SourceBritney Spears on Instagram

Elisabeth Kramer is an Assistant Editor at Wetpaint Entertainment and our resident Downton Abbey expert. Follow her on Twitter and Google+!