Lamar Odom may insist he’s doing everything in his power to win back estranged wife Khloe Kardashian, but his recent behavior tells a different story.

The former NBA star, who was playing basketball with Spanish team Laboral Kutxa until a back injury sidelined him for the rest of the season, returned to the US to get better — and maybe even get in a little bump and grind with his ex.

The only problem? The ex in question isn’t Khloe.

Despite his claims that getting Khloe back is the only thing on his mind, In Touch reports that Lamar tried to sneak in a little side action with ex Liza Morales when he returned home.

He got dirty with Liza over the phone, acting like he wanted to hook up with her again,” reveals a Kardashian insider.

Liza may have a soft spot for Lamar as the father of her kids, but she made it clear that there was no way he was going to get into her bed.

“Liza laughed at him,” adds the source. “If he’s trying to get things better with Khloe, she’d better watch out, because Lamar is still creeping.”

Are you surprised that Lamar may be up to his old tricks?

Source: In Touch / RadarOnline.com