Pippa Middleton and an unidentified dance partner
05/04/2011 AT 04:30 PM EDT
We all know Pippa Middleton
the part as the royal wedding
maid of honor.
Turns out, she can also un
dress when the occasion calls for it.
A photo of Duchess Catherine
's younger sister, 27, recently surfaced in which the tanned, toned Brit is dancing in her bra with an unidentified shirtless man.
No word on the royal reaction to the revealing photo, but something tells us the public's fascination with the younger Middleton is just heating up.