Sienna Miller goes braless in these photos. Out and about in Hollywood recently, the actress known as former Mrs. Jude Law sports a punk yet sexy look as she wore a see-thru sundress. You can see the outline of her thongs right there! Now whoever that dude is who got to hold the small of Sienna’s back is one lucky guy. Notice Sienna’s shoes and fiercely wild hair! Yep, she’s one hot braless vixen!