Kourtney Kardashian and Travis Barker couldn't keep their hands off each other at an event where they really needed their feet ... engaging in some light PDA at Barker's 5K.
The famous couple hit his "Run Travis Run" wellness event in Los Angeles early Saturday morning where the dynamic duo held hands, hugged ... and -- in typical Kourtney-Barker fashion -- grabbed a handful of booty.
Check out the pics ... KK and TB hit the festivities in their Saturday athletic-best leggings, shorts and t-shirt galore and they seemed to walk together for at least part of the race.