Requested by _miedelas: Tom and Harrison prank Y/N by bringing a baby home, and saying that it's Tom's. Y/N is angry at first, but then the baby starts to cry, and the boys don't know what to do, so Y/N has to start taking care of the baby whilst Tom and Harrison record it. Y/N falls asleep and freaks out when she wakes up to find the baby gone. This is when Tom explains that it was a prank, but that Y/N taking care of the baby was adorable.

I stood in mine and Tom's kitchen, my eyes on the knife in my hand as I chopped up vegetables for mine and Tom's dinner. I looked up as I heard the front door open to signal that my boyfriend of a year, and his best friend, had just come back.

"Darling, I, um...I-I need to show you something!" Tom's voice called out. My eyebrows furrowed, my heart jumping in anxiety as his voice was laced with worry. I gulped and put the knife down before walking out into the hallway.

"What's wrong-what the fuck?!" I exclaimed, my eyes widening at what I saw. Tom and Harrison stared at me with sheepish smiles, a nappy bag being carried by Harrison as the baby that was in my boyfriend's arms cooed and looked around the apartment hallway with his fist in his mouth.

"Um...who is this, Tom?" I gulped, my eyes wavering as I looked at the little boy.

"Love, I'm so sorry. I'm so fucking sorry." He returned my gulp. I bit my lip harshly, a tear leaving my eye as I looked at the baby who was probably around half a year old. Which meant that it was perfectly possible for Tom to have gotten his ex-girlfriend pregnant before having started dating me, and not have known it.

"Talk. Now." I nodded. Tom and Harrison gulped and looked at each other.

"I, um, I bumped into Kylie when we were out, a-and she had this little guy out with her. His name is Jackson. And he's mine." He nodded as he looked at me with eyes laced with fear. I scoffed and shook my head, more tears leaving my eyes as my body filled with pure anger. I understood that since Tom had accidentally gotten his ex pregnant, it wasn't all his fault, and he obviously hadn't been told by her when she'd found out. But now we had a permanent link to his ex-girlfriend, someone who it was fair to say was Tom's ex for a reason. I loved Tom and I loved kids, but that in no world meant that I was going to be okay helping him to raise the son that he apparently now had with his ex-girlfriend.

"Yeah, I guessed that from how fucking terrified you look. What the fuck, Tom?" I spat.

"I know, darling, and I'm sorry. I swear to god, I had no idea that she was even pregnant, let alone that she kept him. I really am sorry." He gulped. I opened my mouth to speak, but didn't get a chance before Jackson started to tear up and cry. Tom and Harrison's eyes widened and they both looked cluelessly at the baby.

"Um-."

"What do we do?" Tom gulped as he looked at me.

"I don't know, Tom, he's your baby, you're the one who's supposed to know what his cries mean." I teased with a nod.

"Sweetheart, I literally met him half an hour ago-." Jackson let out a loud scream, making all of us wince as his face already became red from crying.

"Fucks sake, give him here." I mumbled as I gently took the crying boy from Tom's arms. I didn't notice Harrison subtly get out his phone and start to point it at me as I gently bobbed Jackson up and down.

"Hey, it's okay, baby, you're okay, what's wrong?" I cooed, Jackson crying and wailing as I gently lifted him up and raised his trousers to my face.

"Fuck me, I figured out why he's crying, he needs changing." I winced as I lowered him to properly hold him again.

"Not it!" Both of the boys yelled, making me roll my eyes.

"Assholes, I think that it's pretty clear that I'm the only adult here who knows how to take care of a baby. That's the nappy bag?" I asked as I nodded to the bag that Harrison had.

"Yeah, Kylie said that everything was in there." Harrison confirmed.

"Come on, I'll change him." I mumbled, Tom and Harrison looking at each other as I walked into the living room.

"Here we go, beautiful boy, you're okay, yes you are." I smiled and shook my head, Jackson still crying and whimpering slightly as I gently lay him down on the floor.

"What can we do to help, sweetheart?" Tom asked.

"Get me out the wipes, a nappy, and a spare onesie if there is one." I instructed. Both boys nodded and started to look in the bag, me gasping and smiling playfully at Jackson as I undid the onesie and took it off of him before undoing the nappy.

"Here you go, love." Tom spoke as he put everything that I needed next to me on the floor. I sighed and started to clean him up, the boys just watching what I was doing as I put a new nappy on the baby. I continued to smile and gasp at him in order to keep him calm, the tears stopping soon enough as I put the new onesie on him and buttoned it up.

"Okay, all clean! We better give him a bottle too to make sure that he stays happy." I smiled and talked in baby-talk as I picked Jackson up and rested him against my shoulder.

"Here you go." Harrison nodded, making me give him a nod of thanks as he handed me the bottle of milk. I gently lay Jackson down in my arms, the baby falling completely silent as I put the bottle to his lips, and he latched on immediately.

"You with him is adorable, my love-."

"Shut up." I nodded, making Harrison chuckle and Tom look at him sheepishly as I continued to feed Jackson.

My eyes fluttered open, my lips parting into a quiet yawn as my body came out of sleep. I looked around in confusion, my eyebrows furrowing before I rested my head back against the pillow. I sighed and bit my lip as I started to remember what had happened before I had gone to sleep. Tom had brought home a baby, the baby apparently being his son that he'd only just found out about. I had looked after Jackson before getting tired, and so I had gone for a nap whilst leaving the boys to take care of Tom's son. But now, they'd probably need more help. I groaned and stood from the bed, some residual anger from Tom having gotten his ex pregnant still inside of me as I opened the bedroom door and wandered out. My eyebrows furrowed, the fact that I couldn't hear crying already having been noticed by my mind as I wandered through the apartment.

"Tommy? Haz?" I called out.

"In the living room, my love!" Tom yelled back. I sighed and walked in, my eyebrows furrowing even more as Jackson, and all of his stuff...was gone.

"What-where's Jackson?" I scoffed.

"Um, yeah...I have something to tell you, darling, but you have to promise not to kill me." He smiled sheepishly as he stood up and gently curled his arms around my waist. I looked at him.

"Why, what did you do?" I gulped.

"Remember that I love you when I say...that it was all a prank." He nodded. My eyebrows furrowed, my mind confused as to what he was talking about as we looked at each other.

"What?" I asked. He gave me another sheepish smile.

"It was a prank. I didn't bump into Kylie, that wasn't my baby, I didn't get her pregnant...as far as I'm aware, anyway. It was a prank." He admitted. My eyes widened, my mouth falling open at his words.

"What? No, you're lying, you're fuckng lying." I scoffed.

"I'm not, my love. Haz and I came up with it, and Zendaya's sister let us take care of her son for a few hours so that we could pretend that he was mine. It was Zendaya's nephew, not my son." He shook his head. I scoffed again, my mouth hanging open as I pushed on his chest in order to get myself out of his arms.

"Oh my god-you asshole!" I exclaimed.

"We filmed the whole thing too, I'm sorry, I'm sorry, I love you." He laughed and shook his head as I looked at me. I groaned and bent over to rest my hands on my knees, relief washing over me at his words. Sure, I was annoyed that Tom had done something so serious to prank me, but fuck was I relieved that he hadn't actually had a child with his ex.

"You asshole. You asshole." I chuckled and shook my head, making Tom smile as I rested my hands on his chest, and he curled his arms around my waist again.

"I know, darling, but you've got to admit that it was a good one. And, oh my god, seeing you looking after him was so fucking adorable." He smiled, making me return it and roll my eyes as he held me in his arms.

"I must admit that he's a very cute baby, and I had fun looking after him, especially now that in hindsight, he's not your illegitimate child." I teased. He laughed and shook his head.

"So, am I forgiven? Seeing that I didn't actually get my ex-girlfriend pregnant?" He checked as he gave me a sheepish smile. I sighed and crunched my face up as I teased Tom by pretending to think about my answer.

"I suppose so. You redeemed yourself by saying that I was adorable looking after him." I nodded, making him smirk and return my nod as he leant in and gently kissed me.