Jason Sudeikis Credits Weight Loss to Having Se* with Olivia Wilde

Sex is the ultimate weight loss activity says an actor.

An actor has had a noticeable weight loss and is proud of the reason. Jason Sudeikis said that he has the greatest workout partner in the world. The star of NBC's Saturday Night Live tells this to Elle's magazine.

Sudeikis is saying that his fiancée, actress Olivia Wilde, is responsible for his lost weight.

"The truth is, I'm not getting up an hour earlier and walking on a treadmill. I have the greatest workout partner in the world," he said.

He also adds that, "And you don't need a gym membership for that kind of workout."

Wilde, who starred in movies like TRON: Legacy and In Time, has also been vocal about her sex life with Sudeikis.

She informed Us Weekly how they "have sex like Kenyan marathon runners." This is perhaps the reason why Sudeikis lost weight in a short time.

Sudeikis also attributed other factors for his slim figure.

He says that a lot of it comes from the small things such as not eating barbeque sauce with my pizza at two in the morning. He said that he learned how to eat nutritious food at the right time.

He commented that he thinks all of what's happening to his body are manifestation that he is happy with his life and he wants to treat himself well.

29-year-old Wilde, previously married to filmmaker and musician Tao Ruspoli, and 37-year-old Sudeikis has plans to get married next year.