A/N I am soooooo sorry I haven't posted anything in forever there was something wrong with my internet that luckily my wonderful partner Kels fixed for me so to make it up to you guys I'm going to write a multi-chapter story of my OTP

Moriarty rocked the baby in his arms gently as he softly sang a lullaby to her and watched her suck on her left thumb sleepily.

"Hush little baby, don't you cry. Daddy John's ready to save your life. Quiet little baby, stay right here. Mama Mary holds you sweet and dear. Silent little baby, just stay still. Sherlock loves you and always will. Hush little baby, don't make a sound. Uncle Moriarty's got you now." The little girl snuggled closer to his chest and made a contented gurgling sound and Moriarty smiled down at her. It wasn't his normal smile though, not the kind he gets when a hit just got carried out or when he gets to torture someone psychologically, but the kind of smile that's genuine and filled with love. Normally it was reserved for his husband but now his smile was for this baby girl that was nearly asleep in his arms. He sat down on the pristine white couch next to his gruff husband who was casually smoking and watching a tele program comparing different kinds of guns.

"Tiger, look. She's asleep. Isn't she just so adorable?"

"Mhm." Seb agreed as he took a long drag from his cigarette then let the smoke out as he continued. "But she's still not ours. You took her before John and Mary could even name her, that was low even for you." Moriarty looked over at his husband and scowled.

"They were going to name her something horrid, I just know it. I don't know about you but I don't want a daughter with a terrible name." Moriarty responded while adjusting the way one corner of the baby's pink blanket was tucked. She shifted and stopped sucking her thumb for a brief moment before resuming once she was in a more comfortable position.

"They still named a baby girl something horrid." Sebastian pointed out, turning off the tele and shifting to face Moriarty more fully as the conversation grew more complex. "And then they buried her." Moriarty winced just ever so slightly and no one but Sebastian would have ever caught it.

"Sherlly saw the baby. He could have told it wasn't the same girl."

"All babies look like potatoes when they're born, it would have been pretty hard to tell them apart if they were in the same blanket and clothes. Plus you switched the DNA records and the blood tests and paid off the nurse to sedate the baby the second she was born and made it look like Mary gave birth to a still-born."

"So? Since when have you gotten all high and mighty on me anyways? It's not like you to be a goody-two-shoes!" Accused Moriarty, his voice rising in anger. Sebastian grabbed him with his free arm and gently but firmly drew his husband to his chest.

"I'm not getting high and mighty on you, I'm pointing out facts."

"Well stop." Moriarty said firmly, but not as angrily as before, as he started to relax into Sebastian's strong chest.

"Whatever you say." There was a long few minutes in which Moriarty was contentedly staring at their new child, Seb continued smoking and the baby girl simply slept. The silence was filled only by the sound of their breathing and the baby's occasional murmuring until Sebastian spoke.

"And you're right, she is adorable. But if we're raising her, we need to name her."

"How about Satan?"

"And you were worried about John and Mary naming her Agnes?"

"It's not that bad."

"You're naming your daughter after the devil."

"Alright, then how about Lucy?" Sebastian thought for a second and took a drag from his cigarette before speaking.

"I like it." Moriarty smiled softly and whispered to his new daughter.

"Let's not tell him it's short for Lucifer, shall we?"

"I heard that."