Lamar Odom's thirsty comment on Khloe Kardashian's bikini pic on Instagram wasn't a shot at her baby daddy, Tristan Thompson ... it was LO shooting his shot with his ex-wife.
Sources close to Lamar tell TMZ ... he wants to rekindle what he once had with Khloe and he thought Friday's comment on Khloe's IG post was a perfect time to get her attention, seeing as she's not with Tristan anymore.
As you know .