Enjolras made sure that he located the key along with the cuffs, not wanting to take any chances that it might have fallen somewhere. He slipped it into his back pocket and walked out to R.
"You're tense," he said, massaging Grantaire's left shoulder. He could feel a small knot, likely from stress.
"I should give you a massage after this, to work some of that out."
With R volunteering his hands behind his back, E slowly wrapped the metal around his friend's right wrist, hearing it click-click-click until it was snug. The next one followed just the same and Enjolras gave a light tug on the metal chain that connected them.