The former Cheers star - who is in the process of getting a divorce from estranged wife Camille - is said to be so sure the 29-year-old air hostess is the one that he isn’t going to protect his fortune.
A friend of the actor told Popeater: 'Kelsey is deeply in love with Kayte and can't imagine spending the rest of his life with any other woman in the world. He knows she's the one and wouldn't insult her by asking her to sign a pre-nup, even though his third divorce is going to cost him about $50 million.”