The couple that works out together….hopefully stays together!
Of course the beautiful and talented and royally flawless Britney Spears would know to stay hydrated after a workout!
We bet she pounded that bottle!
She's taking this Vegas residency super seriously — we didn't think otherwise — as she was seen leaving after breaking a sweat at a dance studio in Santa Monica, wearing a "Spartan Spirit" tee, featuring Will Ferrell and Cheri Oteri's famous SNL cheerleader characters.
And yes, her 32-year-old boyfriend, David Lucado, was right there by her side!
They gotta stay in shape if they're gonna be parents…of a new puppy! Ha!
[Image via AKM-GSI.]