This explains why Demi hasn't strung Ashton up by his balls. They have an open marriage. Sort of. As long as Ashton shares his side action with Demi, all is well in her world. Ya know, I kind if believe this...Brittney Jones, the chick Ashton had a fling with (and did not share with Demi) has said:
“Ashton said he and Demi have an open relationship and have threesomes often. I didn't feel at all like he had just cheated on his wife. It felt normal and OK. He (Ashton) said they share women, but he isn’t supposed to go off and sleep with women on his own. He explained that he and Demi had a deal where they had to share lovers. He felt bad that he had been with me and didn’t share.”