A/N this takes place after The Six Thatchers, so if you haven't seen the new season be aware of minor spoilers. TRIGGER WARNING!!!! references to self-harm. I thought this would be cute and I ran with it. I love the thought of Parentlock. Enjoy!!!! <3

"John!" I could hear the frustration in my boyfriend's voice as I wrapped a towel around my waist and stumbled out of the bathroom. I had just finished my shower and I could feel water dripping along my back as I made my way out to the living room. The sight I stumbled upon was hilarious and I couldn't contain the laugh that bubbled from my lips. Sherlock was kneeling on the floor, defeat on his face and vomit staining the front of his shirt. I could see Rosie on the floor in front of him, chewing innocently on her favorite rattle and looking pleased with the havoc she had wreaked on her God Father. Sherlock threw a glare in my direction, but it didn't last long. His expression quickly faded from frustration to awe as he looked at me. I couldn't figure out what was wrong and I glanced down. There wasn't anything off so I looked back at him slightly confused.

"What's wrong, love?" I asked, walking towards the pair, stepping over the various toys on the floor. My voice seemed to snap Sherlock out of whatever state he was in and he moved his glare to the child that was writhing on the floor.

"She won't let me change her." He sounded exasperated and it was then I noticed the clean diaper in his hand. "She keeps squirming and kicking and I don't want to hurt her, but she needs changing. I tried to explain to her that if she doesn't let me put a clean diaper on her, the discomfort will only worsen and lead to rash and other potential health issues-" I knelt beside the frustrated man and grabbed his hands. He stopped talking and looked helplessly at me; there were tears in his eyes. I reached for his cheek and he nuzzled into my palm. I felt every fiber of my being swell with love for the man sitting next to me. He cared for my daughter so much, even if she represented the woman that kept us apart. I smiled softly and kissed his nose. His cheeks flushed and he looked back to Rosie, smiling as his eyes landed on her.

"She is just a baby Sherlock, she won't understand reason." I chuckled as I grabbed the clean diaper and adjusted Rosie so she was parked in front of me. He was right, she was squirming more than usual.

"But surely she can feel how uncomfortable it is?"

"That is why she is being difficult."

"That makes no sense." I laughed as I secured the clean diaper on my child's hips.

"There, all better. Now, apologize to your Uncle." I pinched her nose and handed her back to Sherlock, who accepted her happily, grinning at her and kissing her cheek. She let out a belt of laughter, causing Sherlock to laugh as well. I never would have thought Sherlock would be as good with Rosie as he is. I stood and started to head back to the bathroom. As I threw on my clothes, I looked in the mirror and realized what Sherlock must have been so freaked out about. My scars, lining my forearms and rib cage, stood out harsh and pink against my skin. I always made sure to keep them hidden, even when we were intimate. I always insisted on keeping the lights off, and had put off showering together. I jumped when I felt hands sliding along my ribs. I leaned back into my boyfriend's embrace, feeling him press light kisses along my neck.

"Where is Rosie?"

"I put her down for her nap." He continued pressing kisses along my neck and shoulders. I felt his fingers brushing over my ribs, tracing the patterns of the raised scars. Shame filled my being and darkened my cheeks. I reached for my shirt and tried to pull it on; hoping Sherlock would let this go. He knocked the shirt out of my hands and spun me around, pinning me to the counter. There was sharpness in his eyes that I hadn't seen in a long time. But there was also softness; a look that he kept reserved for me and Rosie.

"Sherlock-"

"Why?" His voice was rough and full of emotion. I couldn't look at him.

"It helps." He drew in a shaky breath, acknowledging the tense I used.

"How often John-"

"Sherlock-"

"No, John!" His tone sharpened and I flinched. I could feel the tears trying to escape. "How often do you cut?"

"I haven't in a while." He kept his eyes focused on me. "Not since-" I hesitated. "Not since-" I couldn't stop the tears, burying my face in his chest and wrapping my arms around him. He held me tight, letting the tears flow. This was the second time I broke down in front of him since Mary died. These tears were not from pain this time. These tears were because of the burning shame that was smoldering under my skin. When I had started to calm down, Sherlock pulled back from me, holding me at arm's length and catching my eyes. I thought I would see anger, or hurt, but all I could see was love and understanding.

"I am not upset that you cut John, I know that it is a coping mechanism and I have no right to get upset or demand you stop. The reason I was so upset is because you tried to hide it from me. I love you more than life itself, and I love Rosie. I don't want to see you hurting and I don't want you to feel ashamed." There were tears on his face. "Please don't hide from me John." I nodded and he grabbed my face, pulling me in for one of the most emotional kisses we had ever shared.

"I won't- or I will try to not keep anything from you Sherlock." I whispered when we parted. "I promise. I love you Sherlock." We kissed again, desire tainting this one. I fought with his buttons and pushed his shirt off his shoulders, pressing kisses against his collar bone. I bit the skin and pulled a moan from my lover and smiled against his skin. I was reaching for his belt when Rosie started to cry. We stopped what we were doing and started laughing, pulling apart and trying to compose ourselves.

"Congratulations John, it looks like you have spawned the world's most adorable cock-block." I laughed at his words, turning around and trying to find my shirt.

"Yeah, she takes after her mother apparently." Sherlock chuckled at this. I picked up my shirt and prepared to slip in on when I felt his fingers on my ribs again. I tossed the shirt on the floor and spun to face the man I loved. "No more hiding." I whispered and pulled him in for a kiss. I pulled away and made my way to Rosie's room. Sherlock followed close behind. We were playing with her on the couch when Mrs. Hudson came in with the shopping.

"I see little Rosie interrupted something eh?" She winked at us and sent a flush burning along my cheeks. I had forgotten that neither I nor Sherlock were wearing shirts, and I quickly became aware of a dark bruise on Sherlock's collarbone. "Would you like me to take her so you boys can finish?" The blush on my cheeks deepened.

"Thank you Mrs. Hudson. That would be lovely." I looked at Sherlock, feeling mortified that he was intending on following through with what we had started knowing that Mrs. Hudson would be fully aware. He smirked mischievously and winked at me as he handed Rosie off to our landlady. When she was gone he sauntered back over to the sofa and sprawled across the piece of furniture, resting his head in my lap and turning on the TV.

"What are you doing?"

"Having some personal time with the man I love."

"But Mrs. Hudson-"

"Mrs. Hudson can think what she wants. I know how uncomfortable you get when you think she hears us, but the fact is; we are parents now and if she offers to take the baby for a while we should let her. She knows we are a new couple and she is fully aware of the fact that we enjoy sex. Just get used to the fact that she knows and that I will occasionally ask her to take Rosie so that you can take me." My cheeks flushed again at his words, but one part of his statement stuck out in my mind.

"You want to be a parent?" He looked up at me and smiled.

"Only if you are OK with me being her parent, I would understand if you don't. I am not exactly the greatest role model-" I cut him off with a kiss; my heart was so full of joy I could barely see straight.

"Marry me." I said, watching as his eyes filled with surprise.

"John-"

"I am being serious Sherlock. Marry me. We don't even have to have a ceremony if you don't want to. Then you can adopt Rosie and legally become her father." Sherlock straightened and turned off the TV, placing his fingers under his chin and staring at the floor.

"Are you sure about this John?" I moved so I was kneeling in front of him. I took his hands in mine and kissed his knuckles. Tears filled my eyes when I looked back up at him.

"I have never been surer of anything in my life. You are an amazing parent and I can't imagine anything making me happier than the thought of raising Rosie alongside you. I love you, you giant idiot. So please, marry me." Sherlock looked hesitant for a moment. "Becoming a parent is terrifying, I know, but you have already proven to me a hundred times over that you would never do anything to hurt Rosie. I know how much you care for her and I couldn't ask for a better father figure." I saw the hesitation leave his eyes and he leaned in for a kiss.

"Let's get married John." The tears fell freely then. "Let's have the big ceremony with all of our friends and family. I want the whole world to know how much I love you and our daughter." We kissed, all of our love behind the contact.

"We are getting married." I laughed, hardly able to fathom everything that had just happened.

"We are getting married." He laughed and pulled me into his arms. We hugged for a long while, until my feet started hurting due to the lack of circulation. We stood and grabbed our shirts before making our way down to Mrs. Hudson's flat to retrieve our daughter and share the news. We spent the night exchanging sweet words and playing with our daughter, life was perfect and I knew it could only get better from there.