Last week, drop-dead delicious delight Mischa Barton popped her top for Nylon magazine. Though she didn't go so far as to knock out her nipples, Barton's partial boobage made Misch-o horny!

Well, she must've liked the half-boob look, because yesterday, she hit the beach with boyfriend Taylor Locke of the band Rooney, a barely-there string bikini, and a breast that attempted to escape as if it had a mind of its own.

Looking flawless and enjoying the afternoon, Mischa heated things up while cooling down as she stripped off her shorts and adjusted her bikini top.

Oh say, can you see Mischa's side boob? Oh, see! We see O.C. side boob, say!

If you want to pretend that bikini top never existed, simply sit back and enjoy Mischa Barton naked in Closing the Ring. She's crying and topless. You'll be smiling and bottomless.