Thom, who previously dated model Kelly Brook, is currently competing in the singing competition with fellow sports stars Ben Foden and Levi Davis in a group called Try Star.
When Nicole watched the band perform a racy routine at the weekend, she exclaimed: “That was one of my favourite performances, not because you are hot, and wet, and you’re naked, but because of the song, that song was crazy, rain in London never looked so good.
“I am having the time of my life, thank you so much.”
Fellow judge Louis Walsh, 67, added: “I’ve never seen Nicole so excited about any act, ever.”
Express.co.uk has contacted Nicole and Thom’s representatives for comment.