Yasmine Bleeth was always a looker as Ryan Fenelli on Ryan's Hope and as Lee Ann on One Life to Live. But since joining Baywatch this season, Bleeth has become a sex symbol. To what does she owe her newfound radiance as feisty lifeguard Caroline Holden? ''Simple,'' she says. ''I went from a soap-studio dungeon with no light, no fresh air for 13 hours a day, to a beach in L.A. Now it's, 'Oh, I'll be sunning myself at the water's edge when you need me!' '' Bleeth's romantic life hasn't been too tough either. ''I'm very much in love with Ricky Paull Goldin [formerly of Another World],'' she says. Previously she had relationships with heartthrobs Grant Show and Luke Perry. Her secret? With a laugh she replies, ''Let's just say I have great taste.''