HOW Justin Hemmes and gorgeous catwalk model Alexandra Agoston spent their first St Valentine's Day as an item is, it seems, a rather large secret. Despite having done rather of lot of kissing of late - Natalie Imbruglia, Connie Mitchell - it seems the hotelier playboy Hemmes still refuses to kiss and tell. Photographed with Agoston for the first time at Hemmes' Good Vibrations Festival in Sydney at the weekend, Hemmes then headed to Melbourne but returned yesterday to put the finishing touches on a post-Vibrations Grammys party held at The Beresford Hotel, also his, last night. He refused to share his St Val's Day love plans with Confidential yesterday or even say when he and Agoston, 22, first hooked up.