The truth was that Haru didn't have to work very hard to get Bast wrapped around his little finger, because Bast was probably about halfway there to begin with. For Bast, the mind control was only for certain situations, and he noticed that it happened when he wasn't totally in control of himself either. It was like a instinct that took over, a protective quirk that helped him survive. When he was running dangerously low on blood, his body would automatically shift into doing whatever it could to stay in some state of living, even if it was the life of a bloodsucking leech. But if Haru could really get him to control his cravings, to stop feeding once he'd had his fill, then Bast would be eternally grateful to him. Literally.
He had to admit that the room did put him into a better mood. He was already feeling some type of way about being with Haru, but being away from the club helped to ease his mind some. He didn't know if it was all the black or what, but if he'd had all that money, his room would probably look something like this too. "Love the black," he commented lightly. Of course, some part of him was interested in the rest of the house. Hell, a huge part of him was very interested in the man himself, all sexual escapades aside. What made him tick, what was he like in the mornings, what was his favorite color, why of all people in the world did he ask Bast to come over? Bast didn't want to think of himself as special, because he had enough insecurity issues to kick those thoughts away right quick, but it was nice to be noticed even when this whole thing had started out with a pokemon pick up line.
"Yeah, I... I like O+." He licked his lips, hoping that even just a small drop of Haru's blood was still somewhere on there. He smirked a bit at the line of questioning, but Haru wasn't wrong. "O+ is my favorite but... your blood is different. I... I don't know if it's because of your powers or..." He shrugged, because it didn't really matter. "But it's so good. I'm sorry I drank so much of it back at the club. I.... I still wanna drink more. But I won't. Not unless you let me." He chewed on his lip as he watched Haru strip slowly and wondered how he had gotten this lucky, letting out a breath when he saw those chiseled abs of his. Chuckling a little, Bast brushed his hair back casually, though it probably looked about ten times hotter than he'd intended it to. "It's you actually," he said by way of answering. "It's your blood. I must have drank a lot of it. I tend to... take on certain qualities of whoever's blood I drink. Not all the time, but if I drink too much... well, it'll wear off eventually."
Bast too kept his eyes on Haru as he approached, barely even blinking so as to not miss a single thing he was doing. He was predatory in the way he moved, and it only made Bast all the more turned on. Without breaking eye contact, he moved how Haru had instructed him to, trying hard to keep a smirk off his face. He'd never done anything like this, never been in any kind of Dom/Sub relationship before, but the influence of Haru's blood in his system was helping him keep up with Haru's demands. He was only slightly embarrassed when goosebumps rose up along his skin as Haru relieved him of his boxers. And he took a breath when Haru's hands went around his neck, unused to the feeling but somehow still wanting it just the same.