Gym selfies are not only the domain of lunkheads posting about #legday and their #gainz.
In the first, she poses fiercely before a mirror in a pink training bra, as if to proclaim, "It's Britney, bitch!"
But hit the "next" arrow, and you'll unlock perhaps the sexiest gym shot in history—of Brit doing the splits.
This is the only #fitspo you'll ever need.
Her Instagram is also a treasure trove of similarly stunning shots. See what we mean, below.