Destroyer (A Got7/BigBang/MonstaX/Boyfriend/Stray Kids AU FF) COMPLETED!

Answer

Mark's POV:

It had been a long time since I had laughed so freely and smiled so much. Since Sumi had taken over my responsibilities the last few months, we'd gotten the closest we'd been since before she was even a teenager, before I had the responsibilities. She had really helped me feel more at ease than I'd felt in a long time, and I loved having her back in the house so much. Amaya and Kiyoshi were even spending more time here.

Chasing her from downstairs in the meeting room upstairs to find her, it was the most fun I'd had in a while. My guard was down completely and I was pretty sure her's was as well. When I realized I had her pinned down with my body in a way that would technically be inappropriate between siblings, I realized her breath hitched, and I realized she must've realized it as well. Never having pinned her like this, even joking around, as her body had fully matured, I'd never been so close to her to realize how beautiful she really was.

Before I knew what I was doing, I leaned down and kissed her. At first, she let out a surprised noise, but as the kiss continued, she seemed to get into it. In the back of my mind, I couldn't wonder if it was because it was she was as caught up in the heat of the moment as I was, or there was something else behind her kissing me back. Yet, I pushed the thought out of my mind, ignoring everything else as I held her in my arms, kissing her. When we stopped for air, I rested my forehead on hers, putting my arms on the sides of her so I didn't have all my weight on her, and we were both breathing heavily.

"What was that, Mark?" she asked me quietly, not pushing me away, but sounding as confused as I was in the moment.

"I'm not sure, Sumi. When I realized the position we were in, I just did it. I was caught up in the moment," I replied.

"But I'm with Seunghyun," she said, which I knew she should tell me. It was the right thing for her to do since she was engaged. "And we're..."

"Please, don't say that, Sumi," I said to her, unable to hear her make that kiss not only wrong, but somehow dirty. "I've always loved you and done my best to take care of you, but if there really was something between us, technically there is no blood tie between us. You'll always be my family, but legally only, we're not siblings, which wouldn't make this anything more than a man and a beautiful woman exploring things with each other."

Sumi looked torn. I wouldn't do anything more than stroke her hair as she took my words in. I didn't know anything about her history with guys. Unless she'd dated in Japan, the only guys she'd ever been with would have been Seunghyun and G-Dragon. That idea made me angry, but I held my emotions in. I didn't want to pressure her to feel like she had to explore this with me.

"I'm still engaged, Mark," she said, and I could see that there was still turmoil in her mind.

"There's more on your mind," I said, lying down next to her, pulling her close to me, so we were face to face in my bed on our sides. "What else is going on that's got the wheels in your mind going?"

She looked away from me, but I gently moved her face until our eyes met. I saw a vulnerability in her eyes I hadn't really seen since she'd gotten the twins back.

"I don't really know how to handle relationships, Mark," she admitted. "Until I took over Got7, Seunghyun usually just decided what would happen when. I basically just followed his rules, because I'd never actually been in a relationship before him. So, considering everything I'd put him through when the kids were missing, the fact that he stayed by my side, I just tried to do whatever made him happy."

I didn't like the way she described her relationship with Seunghyun. Other than hickies, she never had any marks that would show she was being hurt, but a relationship wasn't supposed to be like that. And she just confirmed that she'd only been with him and his lunatic twin. I put my arm around her lower back, pulling her closer to me, before I started stroking her hair with my other hand and kissed her forehead. I sighed.