He came up from under the blanket and circled the cage, sniffing everything. He kept looking back at him, though. He ran back and forth and seemed excited when staring at him. Harry tried not to watch, but literally, all of Draco was on display. He felt arousal brewing in him, and he tried to stop it with some painful images of Snape and McGonagall kissing. However, Wolf-Draco was extremely interested in his interest. He kept running around and showing off, though he was confined.
"Come on! Stop," Harry muttered.
The werewolf stopped and whined for his acknowledgment. Harry knew his delay had caused Draco some distress last time, even when he was human, again. He came closer.
"Easy... no biting, okay?"
Draco closed his mouth and licked his lips. He put his head on the crossbeam of the bars and whined. He wanted pets... attention. Harry debated petting Draco. Last time, he was actively defending Draco, so the wolf knew he saved him. But wolf-Draco whined painfully and pulled his head back. Harry was about to comfort him when Draco spun around and presented his ass to him.
Harry choked on nothing and went red with embarrassment. Holy Merlin, he wasn't expecting a full up-close view of Draco's butt and privates. He couldn't help but feel things that he knew he shouldn't and stopped it as best he could.
"No! Draco... come here," he said, quickly.
Wolf-Draco immediately turned around and came, and Harry slowly petted his head. There was no sign of teeth. Draco sat down with his butt wiggling and enjoying the physical contact. He got the werewolf to lay down against the bars, again, and he petted him all over. Wolf-Draco was nearly out, as Harry caressed him for hours, enjoying the soft, short fur that was all over his body.
Halfway through the night, a howl pierced the sky. Draco was up and ready to attack the enemy. Harry got his wand out. He hoped it would have taken longer for the pack to locate them. He walked to the window. Two wolves were outside the line and one let out another shrieking howl. He was calling the pack to them. Harry had no idea how many were in the woods near them, but it didn't take long before five more showed up. He recognized the wolf with a cut on its face. The pack leader was there.
Draco was whining and backing into the solid wall behind him. Harry watched as the wolves slowly dismantled the wards, slicing through the magic with their claws. Harry conjured physical barriers, but they went around them before he could push them out. Suddenly, they crashed through the last magical barriers and slammed into the reinforced door. Harry shot more spells at them, Severing Charms, ropes, and anything else he could think of. Even Avada Kedarva, though he hated doing it.
The werewolves were too fast and leapt out of the way, or the spells bounced off them. He held them off for nearly two hours. Even a Protego Horribilis pushed them back for nearly twenty minutes, and Harry was getting weak from the magic. Maybe he should have asked Hermione and Ron to come. The three of them would have been able to hold them off. There was still over an hour of moonlight left. He wasn't going to make it. 
The wolves were clawing through the cement barriers and trying to fit through the small window Harry was using. There were nearly a dozen werewolves attacking the roof, walls and door. Nails were starting to come through. Harry was considering trying a Protego Horribilis, again, but didn't want to risk passing out. He tried to reinforce the spots the wolves were coming in, which was slowing them down. Holes were appearing everywhere. 
Suddenly, a gnashing werewolf head broke through the door and nearly came through. Harry conjured another wall and slammed it on him, but the werewolf was pushing it back. It was stronger. Harry physically pressed the cement wall against the door, as the werewolf tried to squirm around it. Harry couldn't hold the door and cast spells. The holes in the roof were getting bigger, and soon, the wolves would be coming in from everywhere.