The actress admits she's not fond of watching her husband play alcoholic patriarch Frank Gallagher in the U.S. series because he films so many "wild" romps with his female co-stars, who rave about his manliness.
She tells You magazine, "My husband says that when he sees me in a sex scene he closes his eyes and hums, but when I see him - and boy has he had some scenes in Shameless - I do that thing that women do, I will quiz him afterwards: 'What was she like?', 'Do you think she's pretty?' and 'How big was her butt?'
"The other day he came home from the set of Shameless and told me that the actress who plays his estranged wife, Chloe Webb, with whom he has been doing these wild sex scenes, had told him that she loved acting with him because he was 'such a man and usually I am acting with boys'. He loved that."
But the Desperate Housewives star has learned to accept that sex scenes come with the territory in a Hollywood couple's line of work.
She adds, "It's all fine - we both know that having sex on set is the least sexy thing you could ever do in your life because there are 20 people in the room and 100 more watching and all I am ever thinking is, 'I hope I don't look disgusting.'"