Carmelo Anthony's wife La La just totally one-upped the basketball star's promise of a Knicks championship ... by promising the whole world a look at two even more coveted trophies ... her boobs.

La La sat down for an interview with "The Breakfast Club" where she talked about a milestone in her exploding acting career -- an upcoming episode of the Starz show "Power" where she has her first sex scene.

That's when Charlamagne Tha God jumped in ... asking La La if the love scene would feature any 'freeing of the nipple' on her part ... to which she very gleefully answered, "Yes."

FYI -- She says it happens in episode four, which is set to air on June 27th ... so, you're welcome pervs.