Khloe Kardashian and Tristan Thompson are no longer just getting cozy again ... they're also getting sweaty together.
Khloe and Tristan hit up Malibu Hills Wednesday for a healthy hike and seemed to cement what everyone's suspected for some time -- they're back together. The old adage that couples that dress together, stay together may also be true ... 'cause they seemed to coordinate their sleek black outfits.
Tristan even gave his sports agency -- Klutch Sports Group -- some good pub. BTW, it appears 'KUWTK' cameras were also rolling during their hike .