Harry rolled the stool to his side and rubbed the top of his upper leg. "These are your quads. That's where most of your leg strength comes from. I just want you to tighten the muscles and release them. There, like that."
Draco was barely moving anything, but Harry seemed pleased with his movements. Draco grunted, "Doesn't seem like much. Thought you'd be working me more."
Harry met his eyes and smiled. "No, it's not much, but you're training your muscles to respond to commands. It's called muscle memory for a reason, and memories fade over time."
"And I haven't used the muscles in six years," Draco finished as he did another set for Harry.
Harry looked down and nodded. "Exactly. It's not just the muscles we are training. It's the nerves to your spine that go all the way to your brain. You haven't moved in so long that everything needs physical therapy. That's what we are doing. I'm kinda surprised that you don't get light-headed moving around."
Draco grimaced and met his eyes. Truthfully, he did often feel woozy even wheeling around his room, especially with the kids earlier, but he didn't say anything.
"Draco, you should tell me these things," Harry said, understanding his silence. "Did the kids push you too much?"
"It went away quick enough. I'd rather not ruin the mood."
"Just tell me. I'll also show you some spatial orientation exercises to help build your equilibrium back up. Alright, now, the other leg."
Harry did five more exercises of increasing difficulty from the sitting position until Draco was sweaty and grumpy, again.
"I help you, and you spend the day torturing me!" he growled as Harry kneaded his leg muscles loose after some sitting leg presses. Draco regretted his tone, though. Harry was on the mend, after all.
Thankfully, Harry didn't flinch and chuckled. "Yeah, that's how it goes."
Draco was kinda surprised at his laugh as Harry seemed a bit vulnerable. However, Draco had taken Harry's words to heart after the trial. Harry liked when Draco snapped at him. He wanted him to talk, whether it was biting or not.
"But three hours of torture is enough, I suppose. Let's get you loose," Harry said, and did another long, soothing, yet enduring, massage.
Draco was nearly jelly by the time he was done and was fighting unconsciousness.
"Anything still tight, or you want more done, Draco?" Harry said, working his hands, again.
Draco hmmed and then realized that his back was a bit out of whack. Harry never rolled him since he had healed his hips.
"Can you do my back?"
"Of course," Harry said and made to slip his hands under.
"No, rotate me and do it right," Draco said, and Harry stared, silently. "I'll be fine. It's you, Harry. I know your magic, your touch. I'll be okay."
Harry nodded. "I'm just going to put you on your side, for now, to see how it goes."
Baby steps, Draco thought pointedly and moved at Harry's direction to the side of the bed. Harry gently pulled his shoulder out from Draco as Harry assisted him in the movement. It was strange to be on his side, but it felt good, stretching out in a way he hadn't in a long time. Harry thought he would be upset, as he had spent years lying facedown on a bed. However, he'd just spent the last few months on his back. He needed variety.
Harry carefully began massaging his back, now with both hands free and no mattress in the way. Draco knew it'd be better, more intense if he were on his stomach, but he could wait until Harry was comfortable with it. He just let the feel of Harry's sure fingers press and rub into his pressure points all the way up his spine. Merlin, it felt so good as Harry kneaded days, weeks, years of tension out. He was relaxing more and more as Harry's deft hands extracted out the last vestiges of pain.