Joshua Jackson Reveals How Diane Kruger Handles His Steamy Sex Scenes on 'The Affair'

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Joshua Jackson's love scenes on The Affair can get super passionate.

The 37-year-old actor tells ET in a new interview that his longtime partner, Diane Kruger, understands as an actress herself that it's all in a day's work.

"The show might be steamy, but it's so tremendously dysfunctional that I don't think she feels threatened by anything that's happening on camera," Jackson told ET Tuesday at the Miss Golden Globe event. "Thank god she's an actress as well so she understands."

"I think it would be very difficult to be with someone who wasn't in the business and trying to work with material like that," he continued.

That's not to say the couple, who has been together since 2006, is able to sit down and watch the intense drama.

"It's a hard show to watch sometimes," Jackson admitted. "It just brings up difficult topics between couples and people, so yeah it's a tough one."

Meanwhile, the couple teamed up this year for the film Sky. Kruger told ET in September that working with someone she's in a relationship with wasn't as tough as she expected it to be.

WATCH: Joshua Jackson Wants 'Dawson's Creek' Reruns Off the Air Before He Has Kids

"I was worried about having chemistry with him, because we’re not supposed to have chemistry," she said. "But when he stepped out of the trailer, I knew we were OK. He’d been growing this beard for about three months and then shaved it off for the mustache. I told him he had to shave it off before he came home!"

The Affair is currently in its second season on Showtime, but there was a time when Jackson was winning our hearts as Pacey Witter on Dawson's Creek! Watch the actor reflect on his "awkward years" on the show below.