Colin Kaepernick -- BODY SHOTS with Hot Bikini Chicks

Know why it doesn't suck to be the quarterback who lost the Super Bowl? Because hot girls will drink alcohol out of your belly button no matter what.

The photos just surfaced ... showing 49ers QB Colin Kaepernick partying on board a cruise ship in Mexico last year ... letting girls do body shots off his six pack ... and they're so awesome, we couldn't resist posting them.

More impressive ... the pics were shot BEFORE Colin replaced starting QB Alex Smith.