The 43-year-old actress singled out her Dr. T and the Women co-star as being her favourite person to have locked lips with on camera over the years and joked she and her friend always regret not "going for it" more when they made the 2000 film.
Sitting down for Vanity Fair magazine's lie detector test video series, Kate said of kissing Liv: "She beats them all. We, to this day, are like, 'Why didn't we go for it more with our making out?' She has the softest lips of them all. Oh my God. Those lips? Those Tyler lips!" Kate also joked she had "done well" after kissing Billy Crudup in Almost Famous in 2000 and Matthew McConaughey in 2003's How to Lose a Guy in 10 Days and 2008's Fool's Gold."I think Billy is a gentler kisser. I wouldn't say better, but definitely just gentler. It's a more sophisticated version of a kiss. It's like theatre. It's like Stanislavski and like Longhorns.
Elsewhere in the interview, despite being best known for her rom-coms, the Mother's Day actress admitted she doesn't watch many. She said: "I don't watch that many rom-coms. I love rom-coms, but sometimes for me the rom-coms that people are seeing are not movies that I... I'd probably choose something else."