Popsugar Fitness Relationships Reasons to Work Out With a Friend 13 Reasons to Sweat It Out With a Workout Buddy June 12, 2015 by Marina Liao View On One Page Photo 2 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 And a Competitor Who doesn't get a little competitive at the gym? One more sit-up won't hurt you. Previous Next Start Slideshow RelationshipsFunny Fitness