Black Brother Shenanigans
Regulus heard Sirius running up the stairs. He could have heard him even if he wasn't running, dude was loud as fuck.
Regulus hoped Sirius didn't come into his room to bother him which just so happened to be one of Sirius' favorite things to do in his free time.
The footsteps stopped for a moment and Regulus actually believed for a second that Sirius was just running around the house to annoy their mother.
Until the door burst open as Sirius kicked it. Regulus sighed automatically, seeing Sirius' mischievous grin.
"What do you want?" Regulus asked immediately. "Hurry up and tell me so you'll leave me alone."
"What do you even do up here all day? I know you don't have any friends." Sirius questioned while looking around the dark room. The room was covered in pages from books, pictures of his family, and drawings. Two of the walls were covered in book shelves full of books about most likely dark arts but Regulus hadn't read them all so he didn't know.
"First of all I do have friends, second of all it's none of your business what do I up here. Now, what do you want?" Regulus insisted raising an eyebrow.
"Yeah and all of them are deatheaters," Sirius muttered. He wasn't all that wrong but Regulus rolled his eyes anyway. "Anywho I didn't come up here to question your taste in friendships."
"Andromeda sent me a photo recently of me and you when we were younger, and it reminded me of your 'Special Treatment' I used to give you." Sirius grinned taking out the photo.
It was of Regulus (who had to have been about 12) laying on the floor laughing his head off while Sirius sat on top of him vibrating his hands into Reggie's belly. The photo brought back the memories of all the times Sirius would give him 'Special Treatment' which was just Sirius' excuse to wreck him till he had tears in his eyes, a goofy smile imprinted on his face.
Regulus blushes looking at the photo, his body tensing up automatically. Regulus eyed Sirius warily as Sirius slowly approached.
"It's been a while since you've received any special treatment.." Sirius grinned. " We've got some catching up to do~"
"No!" Regulus yelled, panicking. "That shit is for little kids- DO NOT TOUCH ME!!" Regulus shouted as Sirius walked closer. Regulus crawled away, backwards, just now realizing that the door was closed.
"Oh Reggieeee~" Sirius teased.
"I'll- I'll never talk to you again!!" Regulus screamed threateningly. Sirius laughed, throwing his head back. Regulus scowled but say an apportunity and took it. He bolted straight twords the door, wrenching it open and running down stairs. He heard a very indignant "hEY!" from Sirius before footsteps were right behind him.
Panic struck him like a bolt of lightning making him run up the next staircase he saw. He ran into the nearest room hoping to find a place to hide. Unfortunately he ran right into a dead end which happened to be a spare bedroom for guests.
He looked around frantically for any escape routes but found the only one blocked by Sirius. He reached into his back pocket for his wand but found it to be gone. Sirius chuckled and pulled out Regulus' wand
"Looking for this?" He held it up. "No where left to go now Reggie~"
Butterflies were fluttering in his stomach, his face burning. Sirius took one more glance at Regulus before pouncing on him, wrestling him to the ground.
Sirius was more experienced with wrestling (thanks to James) but that didn't mean Regulus didn't put up a fight. He wasn't about to lose his dignity without at least punch Sirius once in the jaw.
"Ouch! Fuck- Reggie, stay STILL!" Sirius finally managed to pin Regulus' hands under his knees. By now light giggles would slip out of Regulus every now and then.
"What's wrong Reggie? The big bad tickle monster gonna come gettcha?" Sirius questioned while walking his fingers up his brother's sides.
"St-stohop- PAHAYtroHonizing.. me-" Regulus struggled to not burst into giggles.He turned his head left and right while Sirius continued to repeatedly walked his fingers on his sides and sometimes on his belly.
Regulus watched Sirius' hand hover over his stomach, wiggling his fingers slightly. Silence stretched over them for a few moments before Sirius dug his hand into Regulus' tummy.
"Nonononono-! ACK!! NahahaHaAh," Regulus squealed finally releasing the built in laughter.
"Yup, still as ticklish as I remember," Sirius dug into Reggie's bellybutton making him arch his back.
"Let's see.. are you still ticklish here?" Sirius poked his sides making Regulus giggle and nod his head.
"You are! What about... here?" He squeezed his knees making Regulus yelp before squeals started coming out of him.
Without warning Sirius dug into his brother's armpits making Regulus downright cackle.
He threw his head back, laughter pouring out of him like water from a river. Sirius took the chance to blow a raspberry on his exposed neck.
"NOHohOHoHO!! IHI'M goHOhOhnna kihihill yOHoHou!" Regulus laughed, squirming around trying to dislodge his hands. He managed to get one out from under Sirius' knees but Sirius just grabbed it with his hand, pinning above Reggie's head.
"Hmm now let's see.. if I recall you have a special rib?" Sirius asked. Regulus shook his head frantically.
"Oh? You don't? Cause I remember it being riiiight.." he pointed one finger on Regulus' highest rib and pressed down on it in a swirling motion. "here."
Regulus' laughing increased so that he was practically screaming.
"NAHAHAHAA SIHIIHURIHIUS NOHOHOHAHA-" Regulus pulled on his trapped arm to try and cover the spot. Sirius was ruthless and kneeded into the rib continuously.
"IHIHIHI CAHAHAN'T!! NOHOHO MOHOHORE!!" Regulus shouted after a minute of heaven hell.
"Alright, I'm done," Sirius said getting off of Reggie. Regulus instantly curled in on himself, giggling like a maniac.
Sirius sat next to him while he calmed down, grinning at him occasionally.
"Ihi- I hahate you.." was the first coherent thing Regulus said. Sirius laughed patting his brothers back.
"Alright, my turn," Regulus said rolling over to look at Sirius who's face flashed with panic.
"Only if you can catch me!" Sirius said running off, Regulus chasing after him.
Hope you like it it's a bit rushed
Happy Friday