The Scottish star, 52, plays spin doctor Eli Gold in the popular US series.
Talking about preparing for roles, he told Graham Norton: “I Google naked pictures of people before I meet them.
“If I am going to do sex scenes with them I need a little heads-up. If it is out there you might as well take a look!”
Cumming, who is married to husband Grant Shaffer and is bisexual, said he asked for a sex scene to be written into The Good Wife.
“My character was very uptight because he hadn’t had sex for so long,” he said.
“I said to the writers, ‘I think I am quite a good actor but I am finding it hard to play someone who hasn’t had sex for three years and I want some action!’
“Five weeks later Eli’s ex-wife turned up and the relationship was re-kindled. I also had sex scenes with Amy Sedaris‘s character – it was one of the funniest things I have had to do and she bit me! … She bit my finger!”
Kidman spoke about filming a bath scene with Colin Farrell in new film The Beguiled.
“I had to give him a sponge bath and it took about a day,” she said.
Asked whether the scene was awkward to film, the actress joked: “Can we move on? My husband is on the show!”
Kidman said of getting together with her husband: “He didn’t call me, not for four months. But he says different” to which Urban admitted: “I was scared!”