Sin City just got a little naughtier!
On the opening night of Britney: Piece of Me, Britney Spears brought up Mario Lopez to join her on stage for her song Freakshow and Monday night's show was no different!
This time, Lance Bass was chosen to join Brit-Brit on stage and he donned a pair of adorable kitty ears!
Judging by the look of the former boybander, he seems to be enjoying every moment of it!
When Britney made Lance get on his knees he thought to himself ______________________________________________!
[Image via Imgur.]
Tags: britney spears, cat, fill in the blank, lance bass, meow, nsync, piece of me, s&038;038;038;m, sexy, sighting, sin city