Yes, Master - I will massage your sore back. Where is it sore? Oh, the very low part of your back. Well, let me give it a very thorough massage. Down lower? Okay, that is really down at your butt, sir no problem, sir. Now, how about you turning over? I'd like to take care of that stiffness you're talking about - that nice, fat cock that's throbbing and leaking. I'm glad that you like the new outfit I have on - your cock sure likes it. I'll be glad to give that stiffness a workout.