After losing three of his wives in the past few years, Sister Wives star Kody Brown is toying with the idea of adding another wife to his family which includes remaining spouse Robyn Brown — on one condition.

“You and I share something very special, but if it’s not duplicatable, it could put us at risk,” Kody, 56, said in a preview clip of the season 20 premiere shared by People. “There is something wonderful here, right here.”

While Robyn, 46, agreed with her husband on that claim, she wasn’t happy about his “primary motivation.”

“Why would we put that at risk?” the father of 18 said of their relationship. “For anything other than … in my brain, there’s something I want maybe more than you do.”

 <span class="wp-caption-text">TLC</span>

TLC

When Robyn appeared confused, Kody continued, “I don’t want to talk about that subject.”

“Oh, you’re talking about sex,” she said, picking up on his clues.

“My primary motivation, I’m afraid, at this state in my life would be just how good looking she is,” Kody said, which drew a laugh from his wife. “I’m not kidding.”

Aside from physical attraction to a potential partner, Kody also claimed to “want to be able to connect.”

“You don’t understand how you’re coming across,” Robyn told her husband, who confirmed he doesn’t “freaking care.”

During a private confessional, Robyn voiced her true feelings about the subject, calling Kody “a bit of a pig.”