Is Kiefer Sutherland Engaged?

Perhaps the third time’s a charm!
Sources are speculating that Kiefer Sutherland has gotten engaged to his girlfriend, Allure style director Siobhan Bonnouvrier!
Bonnouvrier was spotted wearing a ring on her left hand while the couple vacationed in Italy last month, and then again at the Calvin Klein show during Fashion Week last Thursday!
We wonder if this will calm down his insane, drunken antics!
Nah. Probably not!
But hey – if it doesn’t bother her, more power to them!
Congratulations, you two?
[Image via WENN.]