Harris tied the knot with the 86-year-old on New Year's Eve after the pair got engaged for the second time following Harris's cold feet in June 2011.
© Twitter / Hugh Hefner
However, Harris remained silent when Huff Post Live asked her about the intimacy in her marriage, saying: "Er, I'm not going to... No comment."
She did suggest that the pair spend their time in other ways, saying: "I feel like since Hef is older now and he's had the phase of his life, the phases of all the girlfriends and all that kind of stuff, I feel now is more like cuddling up and watching a movie or playing backgammon.
"We play Uno with the girls, dominoes - it's more just kind of like a companion type [of relationship]."
Harris also insisted that she had been misquoted about Hefner's sexual performance in interviews following their 2011 split - in particular, in a Howard Stern discussion in which she claimed sex lasted "like two seconds" with Hefner.
© WENN / Daniel Deme
"People switch things all over," she said. "I never said that. When I first left I did some interviews I shouldn't have done. I was mad - it was a break-up! So I shouldn't have done some of the things.
"And at the time I had a bad publicist, so things did get switched and turned around. I did an interview with Howard Stern that did not go well. And the things that were out there, the two-minute man type of things, I did not say that. It got switched from what I said."
Harris recently announced that she is auctioning off her wedding dress to raise money for lymphoma research.
Watch Crystal Harris talking about her marriage below:
