Classes had ended and Sirius didn’t want to be anywhere else, other than under Moony’s arms. When Professor Slughorn had dismissed them from potions, Sirius ran with Moony’s hand in his all the way back to the dorm. Where he then promptly threw off his shoes and rob, opting for their comfier clothes, and pushed Moony onto the bed. Eventually getting to the part where Moony ran his fingers softly over Sirius’ back under his shirt.
“How was your day?” Sirius mumbled into the other’s ratted t-shirt.
Remus brought his hands lazily up to Sirius’ scalp, holding him by the nape of neck. “Fine. Great now.”
“What happened?” Sirius frowned.
Lightly shrugging, Moony responded. “Oh you know, Slytherins calling me a mudblood again.”
“They called you a mudbl-” Sirius brought a hand sharply to his mouth, gasping and sitting up straight. “I am so sorry, I almost said it! I didn’t mean to, I swear.”
Remus stared blankly up at him, and Sirius was beginning to worry he had cost himself their relationship. Remus continued to furrow his eyebrows and tilt his head on the pillow. “Huh?”
Sirius gestured helplessly. “I almost said… you know…the word!”
“Oh.” Remus watched him closely, finally revealing himself in the slightest upturn at the corner of his mouth.
“This is funny! I’m really, extremely sorry.” Sirius felt himself get hot in his cheeks with embarrassment.
Still laying against the sheets and pillows, Remus stared sweetly. “You are my boyfriend.”
“...and?”
Remus shrugged one shoulder casually. “You could say it if you want.”
Sirius thought about it for a moment, before shaking his head. “Nooo, you’re putting me on.”
“Am not.”
Sirius desperately tried to read his face, until he saw the twinkle in his eyes, causing Sirius to hit him with the nearest pillow. “You’re lying to me!”
Moony, his moony, laughed sickly sweet in between swatting away the pillow attacks. “I’m-” He laughed again, with his full chest. “I’m serious!”
“Stop teasing!” Sirius gave him one more smack to the head.
Remus sat up, gripping onto Sirius’ forearms. “C’mon say it.”
“I feel like you’re testing me.” Sirius stared down at the bedding crumpled up between them.
“Am-” Remus interrupted himself with his own giggles. “Am not.”
Sirius didn’t know what to think. It felt wrong and dirty, but here Remus was trying to get it out of him. He opened his mouth to feel out the syllables for closing it hurriedly. “I can’t, it’s wrong!”
“C’mon, c’mon.” Remus continued. “Muhh- udd -bloo-”
“Muhh- udd- bloo-”
“Ud”
“Ud”
“There.” Remus smiled lightly. “You just said, and I didn’t die.”
Sirius furrowed his eyebrows. “Well alright.”
They had gone back to cuddling, but Sirius was still thinking about it. Surely, this couldn’t be right. Maybe he should ask James. But James was a pureblood, he wouldn’t know either.
At dinner, Sirius had already almost forgotten about it, leaning into Remus’ side. Until Marlene made her eyebrows dance while asking, “So why’d you two run out of potions class?”
James, god amongst men, then asked. “Remus, is it because of the Slytherins calling you ah…”
Marlene frowned. “Calling you what?”
“A mudblood.” Sirius supplied.
Or at least he thought he was being helpful until everyone in Gryffindor turned to stare at him in disgust.
Lily was the first to speak. “What did you just say?”
“Uh- a- mudbl- Remus said it was okay!” Sirius stared at boyfriend, searching for reassurance.
Remus only shook his head, shrugging his shoulders. “I never said that. Who told you that was okay?”
“You, you fucking bastard! We were just talking about it- you freaking sai- YOU WERE THE ONE- I DIDN'T EVEN WANT TO SAY IT!”
Sirius was getting flustered under all the unwanted attention when Remus fucking giggled turning to Lily. “See, I told I could get him to say it.”
To which Lily rolled her eyes and shoved her money across the table reluctantly. “James was nowhere near cracking anyway.” She huffed.
“Are you kidding me?” Sirius felt like he was going insane.
Mary, sitting next to Lily and Marlene, blinked. “You… you guys bet if you could get your pureblood boyfriends to say the word ‘mudblood’?”
“Yeah, pretty much.”
“Exactly that.”
Remus and Lily said at the same time.
Mary sat baffled. “God, I need to try that.”
Sirius waved his arms in front of everybody’s faces. “I would like to note that I am very sorry and would never be saying it again!”
Peter and James threw their heads back laughing. “I can’t believe you caved so quickly.” Peter got out.
Sirius pointed at him with dramatically stern eyes. “Shut up.”
“It’s okay babe.” Remus brought his long fingers to gently card through Sirius’ hair. “You can still say it with me.”
“Really.” Sirius asked, confused.
Until everyone shouted back at him. “NO!”