Conor McGregor -- Parties with 10 Bikini Chicks ... What Loss?!?

Nothing helps to change your mood after a devastating loss like 10 hot chicks at a Vegas bikini party ... just ask Conor McGregor.

Sporting a pair of shades on his bruised face, Conor hit up the Encore Beach Club at the Wynn Sunday where he was comforted by 10 scantily clad super fans.

He seemed like he was in a pretty good mood despite losing to Nate Diaz at UFC 196 the night before ... even giving one of the ladies a friendly kiss on the cheek.

Suddenly, losing's not so terrible ...