Former Beverly Hills, 90210 star Tori Spelling is keeping quiet over recent reports that husband Dean McDermott cheated on her.

The actress posted photos of the couple's four kids on her blog on Christmas, writing, "Merry Christmas from the McDermotts."

"As another year comes to a close, I can’t help but feel so grateful for all of my blessings. My beautiful family, my amazing friends, and of course, all of you."

According to Us Weekly, McDermott had a one-night-stand with a woman he met while promoting his new Food Network Canada show "Chopped Canada" in Toronto earlier this month.

McDermott, who hosts the show, invited 28-year-old Emily Goodhand back to his hotel room at the Fairmont Royal York Hotel where they got it on -- according to Emily.

"He told me he and Tori had a sexless marriage," Goodhand tells Us Weekly. "I believed him."

Reps for the couple, both 40, haven't commented on the report. Tori and Dean married in 2006, and he reportedly hooked up with her while he was still married to first wife Mary Jo Eustace.

As they say, 'once a cheater...'