Bruce, Khloe & Kylie Lonely Hearts Club Band

2/15/2014 8:04 AM PST

Bruce Jenner, Khloe and Kylie Kardashian -- Lonely Hearts Club Band

The singles band together for Valentine's Day -- Kylie and Khloe Kardashian lunched with Bruce Jenner near the family home in Calabasas.

Gotta say ... Bruce looks great -- better than he has in a long time. 

The 2 sisters showed unity as they left the restaurant.

As you clearly know ... Bruce is separated from Kris ... and Khloe has filed for divorce from Lamar Odom.

As for Kylie ... she's 16 and single.