We LOVE Kim Zolciak ... and Mauricio Umansky and Kyle Richards -- in that order -- and so the combination of the three of them with a Kroy Biermann cherry on top is almost too much for us to handle!

The fellow Real Housewives brought their hubbies (and Kyle brought daughter Portia) along for lunch in Beverly Hills, on Saturday. And there was just so much glam and glitz and fabulousness going on, we can hardly take it!

Kim wore a blush pink jumpsuit that was a teensy too long in the legs, but flatter her flat stomach, while Kroy did his usual casual look in cut-off denim and a sweatshirt. Kyle took a casual cue and wore jeans and a tee-shirt, while daughter Portia was her usual fashion-plate self in an adorable dress -- and Mauricio, well, 'nuff said; let's just say he looked hot as usual.

So as Kim was getting in the car, we caught this cute moment as KZ passed little baby that she couldn't stop staring at ... and guess what she told Kroy? Watch! ...