Time with my father

Who's idea was this?

Sigyn just finished washing the dishes when Greg made an announcement.
"GAME NIGHT!!!"
"What?"
"Come on Sig, we're going to play a game together. MYCROFT HOLMES! Stop pretending you can't hear me! Put your brief case down! I called A already and made sure your schedule is clear." Mycroft was trying to escape while Greg was talking to Sigyn. He failed.
"Why do we have to play a game?"
"Because it's fun. Come on sit down, you too Sig."
Sigyn made her way to the living room floor next to Greg. Greg was setting up a game on the coffee table as Mycroft sat on the couch. Greg stopped mid set up and stared at Mycroft, slowly he narrowed his eyes.
"I'm playing a game, don't push it."
Greg just continued to stare.
"Fine!" Mycroft joined his daughter and fiancé on the floor. Greg smiled and continued to set up. Greg placed the board on the coffee table and separated the cards into three piles. He shuffled each pile and picked one card from each. He then placed the three cards into a small yellow envelope marked 'case file'. He gathered up the remaining cards and shuffled them together. He divided the cards between the three of them. Next he placed the playing pieces on the board. A scarlet red piece was placed first, followed by a white. Next a mustard yellow one, then a deep blue. Finally a forest green and a plum purple. Each player was handed a piece of paper with names, weapons, and locations on it. Sigyn just looked at Greg.
"Ok, mark down the cards you have. Don't let anyone see your cards or paper. We take turns rolling the dice and moving our pieces. Once you're in a room, make a guess. Who you think committed the murder and what they used." Mycroft and Sigyn just stared at Greg.
"For example. I move this piece to the ballroom. Than I say 'I think Mrs. White used the rope in the ballroom.' If you have one of those cards you show it to me. If you have multiple only show one. Once you have a final guess, you have to announce that you're making a final guess and then you get to look at the 'evidence'. If your're correct you win. If not you're out and the game keeps going. Got it?"
"Yes."
"Simple enough."
"Let's play."

"Professor Plum, with the dagger, in the library!" Greg grabbed the evidence envelope and looked inside.
"Yes! That's two for me, two for Sig, and none for Mycroft."
"THIS GAME IS RIDICULOUS!"
"Calm down Myc, it's only a game."
"I have multiple degrees in multiple fields! I defuse possible wars! I run the whole of England! I will not be defeated by a game made by Parker Brothers and designed for children!" Greg leaned over and whispered to Sigyn
"Rumor has it your Uncle Sherlock has problems with this game too" Sigyn and Greg laughed only to be stopped short by Mycroft glaring at them with folded arms.
"I'm glad my torment brings you two such enjoyment." Mycroft started mumbling to himself.
"I think your father's having a mental breakdown. Who'd have thought a child's game would do it." Again Sigyn and Greg couldn't help but laugh.
"That's it! New game! I want to play something that doesn't require a pen and paper."
"Uno?"
"Fine." Greg and Sigyn cleared the coffee table of any and all evidence of Cluedo. Greg brought the card game to the table as Sigyn refilled everyone's drinks. Sigyn was drinking water along with Greg. Mycroft switch to wine after the second round.
"Does everyone know how to play?" They did.
"I'll deal." Greg handed Sigyn the deck. She shuffled them and delt out seven cards each and a discard. Greg played first. Than Mycroft. The game had began.

"UNO!"
"How?"
"I've played all my cards but one. Once you place your card down I'll have won another game." Mycroft was more than a little annoyed. He played a card and Sigyn placed her final card. She had won.
"Sorry father."
"What does that make it? Four games in a row?"
"Not at all. Greg won one game."
"I quit! I'm done playing childish games." Mycroft sat back on the couch and completely ignored Greg and Sigyn's laughter. Sigyn cleaned up the cards as Greg tried to calm Mycroft down.
"Let's watch a movie."
"Fine."
"I'll just start the movie." Sigyn had the cards put away and started to head up stairs.
"Sig, would you please make some popcorn?"
"Uh, sure." She went to the kitchen. She placed the popcorn maker on the counter and plugged it in. She got the butter out of the fridge and popcorn out of the cabinet. She poured the popcorn, placed the bowl and waited for it to pop. The first bowl popped and a second bowl replaced it. She popped a few pieces in her mouth. The second bowl was full and the maker was empty. She grabbed the two bowls and headed to the living room. She handed one bowl to her father and the other to Greg. Greg sat in the middle of the couch with his left arm stretched over the back. Mycroft was leaning into Greg.
"What are you watching?"
"Doctor Strange."
"Would you mind if I stayed and watched with you?"
"Were you planning on going somewhere else?"
"My room. But I would like to watch the movie with you two, if you're not tired of my company."
"Grab a seat, enjoy the movie. Have some popcorn." Sigyn grabbed a handful of popcorn and sat in the over sized chair next to the couch. She drew up her legs and sat at an angle. Greg started the movie. Occasionally, Sigyn would grab some popcorn.

The movie finished. Greg was the only one still awake. Sigyn had fallen asleep in the over sized chair. Mycroft was laying on Greg's shoulder completely asleep.
"Myc, the movie's over. We need to go to bed. Come on honey." Mycroft raised up off Greg and laid his head on the cushion behind him. Greg stood up and shook his head. He walked over to Sigyn.
"Sig, it's time to go to bed. Come on." Sigyn didn't bother waking up. She only groaned. Greg picked her up bridal style. She wrapped her hands around his neck.
"Come on love. Let's get you to bed." Her only response was a moan into his shoulder. He carefully and slowly walked up the stairs. He took each step with care. He made it to her room. Luckily, she forgot to close the door completely. It was open a crack. He pushed it open with his foot. He gently placed Sigyn on her bed. He removed her arms from around his neck. He used care to lay her head on her pillow. Once she felt her pillow she curled her arms around it. He covered her with a blanket. He moved a piece of hair from her face.
"Good night Sigyn. Sleep well." He turned to leave her room and saw Mycroft leaning against her doorway. His arms were crossed and a small smile sat in one of the corner of his mouth. Greg motioned for Mycroft to move. Both men cleared the doorway but stayed in the hall.
"I left you asleep on the couch mister. What are you doing up here?"
"Thinking about how lucky I am to be marrying such a sweet, caring, and loving man. I watched you carry Sigyn to bed."
"I've come to care for her over these past few months. I hope she can come to think of me as more than just your partner."
"Give it some time. I'm sure she will." Mycroft wrapped his arms around Greg. Greg melted into his feature husband. Enjoying the warmth that radiated off him.