SUMMER LOVIN': A quick stroll through Target over the weekend to check out the new Zac Posen line revealed a swimwear standout: the Low-V one-piece in fire engine red. And a fondle or two revealed a seemingly well-made, subtly-detailed, sexy suit that, we'd imagine, would flatter a fuller figure or a lanky waif. Both varieties were trying the suit on at the La Brea Blvd. location, and both varieties were adding the suit to their rather tall stacks of Posen purchases in the check-out line. BEST PART: The suit goes for just $34.99, online or at a Target near you.