Mike's POV

Thirteen and I were sat on her floor playing monopoly. My mind was racing from the question she kept bringing up yesterday. 

Those damn soap operas were getting to her. I did want to do it and explore more with her but she was so innocent and didn't know kissing necks were pretty sexual. 

"It's your turn." She said making me look up at her. She was sitting cross-legged with my old star wars shirt on.  

I grabbed the dice and rolled it. I got seven. I did my turn before hearing her yawn. "Tired?" I asked. She nodded before stretching. 

"Can we finish the game later? I want us to lay down." She said getting up and going straight to her bed. 

I gulped before getting up and walking over to her. She patted the spot next to her and gave me a warm smile. 

I gave her a nervous smile before sitting on the edge and taking off my shoes. I moved a bit and then laid on my back next to her. 

She immediately pressed her body against me and giggled making my heart flutter. I loved when she giggled. 

"You're so warm." She said nuzzling her cold nose on to my neck. "You're cold," I said turning so I was on my side. 

I wrapped my arms around her trying to warm her. "I wish we could stay like this forever." She said snuggling into me. 

I smiled. "Yeah..." I said pressing her tighter against me. We stayed like that for a while before I felt a pair of soft lips kiss my neck. I tensed up and let out a shaky breath. 

"T-thirteen?" I asked before letting out a moan at her kissing my neck again. I pulled away and looked at her. 

"I wanted to know what it felt like." She said looking into my eyes. I touched my neck feeling really embarrassed I moaned. 

She moved her hair away from her neck and gave me a look. "I want to know what it feels like. Kissing your lips feels amazing too." She admitted shyly. 

"A-are you sure you want to do that?" I asked getting a bit more embarrassed. She nodded. I moved her closer to me and instantly attached my lips to hers. 

We both sighed in relief and pulled away before I reattached them again. I did simple little pecks before going for longer once again.

My stomach was doing summersaults from our first make out. She then all of a sudden pushed me and started panting like a dog in the heat. "I couldn't breathe." She said out of breath.

I shyly looked at her and felt a bit guilty. "I'm sorry. I shouldn't... I'm sorry." I said. She cupped my cheek with her hand and gave me a smile. 

"No, I liked it... I wanna kiss you more." She said before leaning in quickly and attaching her lips to mine and pecking them as I did before. 

I groaned as the pit of my stomach felt warm. I knew this feeling all too well. I was gonna get a boner. I pulled away making her look at me with saddened eyes. 

"I'm sorry. I... we should stop." I said trying to think of my naked nana. I cringed but felt that feeling go away. 

"But... I want you." She said gripping my shoulders. "I want to keep kissing you forever but... were kids," I said trying to come up with a stupid excuse. 

"Don't people kiss when they like each other?" She asked confused. "Yeah... but kissing necks and making out is what grown up's do. I mean we're thirteen years old." I said. 

She was silent for a moment before smiling. "Are we old enough now?" She asked. I laughed a bit and leaned in to peck her lips. 

"Is that a yes?" She asked smiling still. I thought about it for a moment. Losing her for over a year practically killed me. 

We missed a lot of time and she missed everything. So, I might as well give her what she wants. She deserves a better life. 

"Yeah," I said giving her a well passionate kiss. It soon escalated back to a heavy make-out session before I slowly trailed kiss down her jawline and before I knew it. 

I was kissing, licking, and lightly sucking on her neck. She gripped on to me as she slightly whimpered. I was loving every second of this. 

"M... Mike." She let out breathlessly. I was trying to keep calm as I moved my bottom half away from her more. 

Even though she wasn't doing anything physical to me, her whimpers and moaning encouraged me. She finally had enough and slightly pushed me away. 

"I can't take it anymore..." She said before crashing her lips on to mine. I smiled into the kiss as she kept pecking my lips. 

We soon started to dial down and got sleepy from the intense make-out session. We cuddled into each other's arms and soon fell asleep. 

[Later That Evening]

I woke up groggily hearing a noise. Thinking nothing of it I laid back down and saw Thirteen still fast asleep. I looked over and saw it was really dark out. 

Too lazy to check the time, I stayed there looking at the most beautiful girl in the world. I reached over and touched her cheek, she moved slightly. 

I looked down and saw I left a few hickeys on her neck. My mouth went agape and my eyes went wide as I started to freak out. 

I got up waking her up in the process. "Mike?" She asked as I went straight to her closet to find something to cover her neck with. 

"What are you doing?" She asked. "I'm so sorry, Thirteen," I said finding her a scarf. "I left a hickey on you..." I said embarrassed. 

She went over to the mirror. She saw them and lightly touched them. I was proud of my work but was also scared. 

"This is hickey?" She asked confused. I came over to her with the scarf and handed it to her. "Yeah, I'm so sorry," I said feeling guilty. 

"Why are you sorry?" She asked before looking over at the door. Hopper had knocked making me almost freak out. 

"Put the scarf on," I said wrapping it around her. She opened the door with her powers and hopper came in confused. 

"What are you doing?" He asked not looking too happy. "She said she was cold..." I said looking away from Hopper's eyes. 

"Well, it's already past nine. You need to get home." He said giving me a weird look. "Can't Mike stay?" She asked, undoing the scarf.

Her white roots slowly going back to black. "No, he can not," Hopper said. Thirteen huffed in annoyance before grabbing my hand and teleporting us to her bedroom. 

I held her hand tightly as I almost fell. "Are you okay?" She asked putting a hand over my chest. "Yeah..." I said feeling slightly sick from it. 

She walked away and grabbed my stuff, coming back to hand it to me. "Thanks," I said slipping on my jacket. 

She gave me a heartwarming smile as she looked into my eyes. "You're getting too tall." She complained. 

I laughed before leaning down to kiss her. We both stayed there for what felt like forever. "Hey!" We heard making Thirteen teleport on to her bed. 

"Yes?" She asked. "No kissing!" He yelled as he looked me dead in the eyes. "Got it," I said already walking out of her room. 

"Bye." Thirteen said. I stopped dead in my tracks and turned. "Bye," I said giving her a smile. "See you tomorrow?" She asked. 

"Yeah, tomorrow."