Monsters Inc One Shots (The Majority of it Being Randall)

Boo x Baby Sister Reader

(As requested.)

It's the year 2017. Mary Gibbs is a seventeen-year-old high school senior getting ready to graduate in a month. Her birthday happens to fall around that time, too. She'll be eighteen within a few days after graduation and she's getting good grades. One of the smartest in her class.

From what she had vaguely remembered as a small child, she had met two monsters. One big fuzzy blue one she referred to as Kitty and a short green cyclops one she referred to as 'Mike Wazowski.' They called her Boo because that's all they knew to identify her. They were super friendly to her and the big blue one was protective of her at that time.

There was however a certain monster that was in her nightmares recently. A purple lizard one who scared her at a young age. Randall was his name. She faced her fear of him and fought back at the time, but recently it's come back to haunt her. The lizard guy is what she'd call him. She's sure his name was Randall, though.

But now Mary or... 'Boo' has a younger sibling she's willing to protect from Randall if she were to ever stumble upon him again. You. You're her one in a half year old baby sister and your name is (Y/N) Gibbs. Mary thinks you're just the cutest thing in the world and your guys' mom Vicky adores you, too.

Sadly, you never met your daddy William because he had died in a car crash last year on his way to work. Mary was devastated and she's been protective of you since. She'd help your guys' mom out with you any way she could and your mom was thankful.

Right now, Mary is in her room and she's on her phone talking to her friend Layla Thomas. You're in there with Mary as you sit there facing your elder sibling. She says, "Yeah. I'll be home. I've got (Y/N) in my room with me." "Awe. You're such a good big sister." "Thanks. Ever since my dad died, I just couldn't let her go. You know?" "Girl, I know what it's like. I have two twin younger brothers I protect after my stupid dad left my mom for a younger woman. At least yours loved you." "God. I can't believe he did that. What a sad excuse for a dad." "Right? I'll be over in just a moment. Later... Boo." "Ha ha. Funny. Alright, see you then Layla." 

She hangs up and she looks at you. You smile and you point at your sister saying, "Boo." Mary smiles and she grabs your feet saying, "I'm gonna get your little feet.~" You giggle. She says, "I'm gonna get those toes.~" You laugh.

She sighs and she picks you up. You hug her and she says, "I love you so much, (Y/N). I'll keep you out of harm's way. No matter what it takes." You say, "Baba." You suddenly hear a creaking noise and you look around. Mary had heard it too and she says, "What the hell was that?" 

You cling to her and she says, "It's okay, (Y/N). It's probably just a squirrel outside." You say, "No." You point at the closet and she looks over. She says, "There's nothing in the closet, (Y/N). It's okay." 

There's the creaking again and you gasp and cling to your sister. She says, "Probably just the wind. My window is slightly cracked open. And so is my closet door. Funny... I don't remember leaving it opened." 

She puts you down on the bed and she gets up. You watch as she walks to her closet door and she opens it. You look a bit scared. But when she opens it, it's just her clothes, coats, etc. hanging up. And a small little drawer for some items. 

She says, "There. See?" She looks over. You smile and you giggle. She says, "No monsters or anything in the closet to come out and scare you." You say, "No." She says, "That's right. No way will one come out and scare you... Especially a big purple lizard monster." 

You say, "Purple." She says, "God, I can't believe how well you speak for a one in a half year old, (Y/N). You're really smart." You smile and you giggle. She says, "Awe, but you're so cute too.~" You say, "Sissy." 

She hears your guys' mom yelling up, "Mary! Layla's here!" Mary smiles and yells, "Bring her up!" You guys hear footsteps and you hear a knock on the bedroom door. Mary says, "Come in, girl." The door opens and you see Layla. Your sister's best friend.

She grins and says, "Hey, girl. What's up?" Mary says, "Nothing much. What about you?" She comes in and she says, "Awe. There's little (Y/N). Hi, (Y/N).~" You smile and you say, "Layla." She says, "Awe, she even said my name so well." Mary says, "Crazy, huh? How she can speak so well." Layla says, "Right?" 

Layla sits down and says, "Girl. I have something to tell you." Mary says, "What is it?" Layla says, "I don't wanna scare your sister, but my closet has been making a lot of noise on the inside. And I keep my door closed."

You look at Layla with question. Mary says, "I'm suspecting something, too. It was freaking my sister out for a couple of weeks now." Layla says, "You think this town is haunted?" Mary says, "Beats me. My gothic neighbor Rachel Holmes said that the green and white house over on Parker Street is built on some cursed burial ground, so I wouldn't doubt it. We could be on one too." 

Layla says, "Girl. This whole town might be on one giant burial ground." Mary says, "Wouldn't doubt it. It does tend to get a little creepy. I remember seeing things come out of my closet as a little girl." Layla says, "Girl. Me too."

As your sister and her friend continue their conversation, you scoot off the bed and you get down on the floor. You walk towards the closet and you grab a stool to stand on it. You grab the doorknob and you twist it. You open the closet and you look inside to see a whole different place.

You gasp. It's a big place. Looks like a factory and there are a lot of doors around. Mary looks at you and says, "(Y/N)? What is it?" You look back at Mary and you say, "Sissy." Mary and Layla get up and they come over. They look in and Mary and Layla both gasp.

Layla says, "What the hell?" Mary says, "Why does this place look familiar?" She picks you up and she says, "Weird." She closes the closet door. Layla says, "Hold up. Let's see it again." She opens the closet door, but nothing is there now. Just the inside of Mary's closet. Layla says, "Were we looking at Narnia, but a big factory with a bunch of doors?" 

Mary says, "Weird. It's not there, now. I swear I've been there before though. There were monsters. Two of them tried their best to hide me from... the purple lizard." You look at Mary with question. She said that and despite you being just a baby, you kind of understood the lizard monster she was mentioning. Turns out, you've been seeing him too. Unbeknown to Mary.

(Time skip.)

Later on at night, you're in your room and you're laying on your toddler bed. Stuffed panda bear in your arms as you lay there. You're still awake though. You're looking right at your closet. The door is slightly opened.

You gulp and you get up. You get out of your bed and you walk over to the closet door. Stuffed panda in your arms. You push your closet door shut and you walk back to your bed. You get on the bed, but then you hear a creak.

You look over to see your closet door opened again. You hold your panda close. The door closes and you gasp. You look around. Nothing is there. But then you see something suddenly appear and scare you. It was that purple lizard monster again. You scream, "EEEAHH!!" The monster grins and chuckles. He camouflages himself on your wall.

Your mom and Mary come running in and Mary flips the switch to your light. You're sitting there, crying. Your mom walks over and says, "Awe, sweetie. What's wrong? Did you have a bad dream?" Mary approaches you and you stand up. She picks you up and you cling to her saying, "Sissy! Monster!" 

Your mom says, "Oh honey. It was only a bad dream." Mary looks over at the closet with suspicion. Like she knows something. She holds you close. You say, "Sissy." You're still crying a bit. 

Mary says, "How about you come sleep with me for tonight, (Y/N)?" You nod. Your mom says, "Mary. Thank you honey." Mary says, "Come on. Let's go." You all head out of your room and you sleep in Mary's room with her for the night. 

After everyone leaves, he appears. Turns out it's Randall Boggs. He grins and says, "I'll be back for the kid. And I know exactly who the older sister is, too. It's been sixteen years. The same kid who tagged along with Sullivan and Mike Wazowski. No doubt that's her." He heads back into the closet to his own world and the door closes on his way in.

(To be continued...)