Could we have another Kardashian sex tape on the way?

According to Khloe Kardashian, there is at least one sex tape out there featuring her and estranged husband Lamar Odom.

“I’ve definitely recorded myself having sex with my ex-husband,” Khloe said on this past Sunday’s Watch What Happens Live. “But not like, talking to camera.”

Of course, the most famous Kardashian sex tape comes courtesy of Kim, who made one with then-boyfriend Ray J in 2003. It was “leaked” in 2007. Though Kim Kardashian threatened to sue over the tape, it pretty much put her on the map.

In more serious Khloe and Lamar news, Lamar Odom is walking again – and Khloe is thrilled.

“It’s such a relief,” she recently told Kelly Ripa and Michael Strahan on Live! With Kelly and Michael . “It was terrifying and scary. No one knew what was going to happen. And what’s crazy is because he’s an athlete, I really think having so many years of working out every single day — he wasn’t even walking three weeks ago, and now he’s walking.”

Odom recently left Cedars Sinai Medical Center and was transferred to a private rehab facility.