If you’re going to make a statement, be in only one entertainment vehicle, then it might as well be one that gives you the most mileage. That’s what Nina Cho must have been thinking. The jet-black-haired, sleek-bodied Asian knew she looked good in a swimsuit and figured that she might as well audition for Son of the Beach, the Howard Stern-produced sitcom on FX. She landed the role of Sum Pi in the episode “With Sex You Get Eggroll,” and watching her strut in a tiny red bikini will give you an eggroll in your pants. But that was it for naughty Nina. Maybe she didn’t go all the way into skin territory, but she still made an impression.