Sweat rolling down his face, Remus carelessly wiped away the dampness off his forehead despite the dirt that smudged over his pale skin. He reached above his head and grabbed on to the handhold and hoisted himself further up on the rock wall. He slowly stepped up onto the next rock, his muscles protesting at the effort they weren't used to being put through. He pushed through the strain he felt, though his sweaty palms caused him to slip, the rope tied off to the contraption around his waist caught him immediately.
"You doing alright, Mooney? Take a break if you need to, I've got you," Sirius called up. Remus nodded but eagerly attacked the challenge of the rock wall once more. His arms burned and finally gave out under his own weight, forcing his knees to slam hard into the concrete. He groaned in pain as he felt the bruises already beginning to form in various places but the cheering squad down below him urged him to finish the last few feet. "Watch your feet, I'm bringing you down now!" His feet touching the ground once more a few moments later, Remus regained his balance with the help of Sirius wrapping a sturdy arm around his waist.
"That was well worth it," Remus offered with a huge grin spreading across his face. "Despite the salt that I can taste and the inevitable soreness that is soon to come, I must admit this was a very good idea, love." Sirius placed a small kiss on Remus' lips before unhooking himself and his lover from their respective ends of the rope.
"Now its my turn," Sirius returned, tightening the rope back up. "I want to see if I can beat your time of 4 minutes and 49 seconds. Who wants to take a bet on my time?" Remus shook his head as he shoved Sirius up on to the first rock.