Michelle Keegan tweet a picture of her bosom?

 Actress Michelle Keegan sparked a saucy riddle last night as a photo of a topless girl in a bath was posted on her Instagram page.

She denied that she’s the naked girl in the picture and blamed her friend Hayley Moynihan for the prank.

Her agent Laura Graham insisted: “Her friend got her passwords.”

Michelle later tweeted her pal: “I’m gonna kill u!”

Hmm...so, who is the owner of the booby?