Elizabeth Hurley is a big fan of her "Gossip Girl" co-star Blake Lively. So much so, Liz would date her - if she was a man.

She recently told OK, "I would marry her in a heartbeat if I had a sex change. She's absolutely perfect in every way."

Liz's 9-year-old son Damian had his "first date" with Blake.  While Liz was working late on set, Blake offered to take her son for ice cream.

Meanwhile, Blake has recently been linked to her "Green Lantern" co-star Ryan Reynolds.  The pair were spotted together over the weekend.