Rod Stewart's son SEAN lusted after his former stepmother Rachel Hunter while she was married to the veteran rocker. Sean, whose mother is Rod's first wife ALANA, was in his teens when the MAGGIE MAY star wed the New Zealand beauty in the 1990s. Earlier this week (ends30MAR07), the 25-year-old admitted he had the hots for her sexy stepmum to New York shock jock Howard Stern. He says, "I used to stare at (her) when she was down by the pool sunbathing naked. I was like 15 or 16 and I was sitting in my pool with a bottle of lotion. "(I never tried to hit on her because) I couldn't handle the full rejection."