Idea: so basically Regulus is a professor in Hogwarts and James is Harry's parent, that has broken up with Lily but they are friends. a very common plot I know stfu idc
Words: 844
Warnings: bottom James, anal sex

The man walked through the Hogwarts walls, slowly but surely approaching his destination. He had always hated how large Hogwarts was. In fact back in the day when he was a Hogwarts student, most of the times he was late were because of the fact he got lost. (the other times were because he did the mistake of waiting for Sirius to be done with his hair). Even after years of running around, he still felt like a little toddler in a mansion.

This time however he knew exactly where and how he was going. He had gone this exact path many times before and he already knew it better than his own pockets. The stuff inside his pockets seemed to change way too often for him to remember what was inside. To be fair, he didn't check his pockets too often.

He was glad he could visit Hogwarts so often. It brought back many memories, most of them happy ones. Most of them about the Marauders. The best ones about Regulus.

"Dad! What are you doing here?" the child whined, looking up at his father. If you didn't know otherwise, you could have thought they were identical twins. The son had caught up to his father's height rather quickly, considering he was only on his second last year at Hogwarts. They both had Black hair, they both had round glasses, they both had very faint freckles, they were about the same height, the father being an inch taller. They themselves couldn't see how much they looked alike though. The son had green eyes where the father had brown.

"I'm here to see Reg" the father chuckled to his son's dramaticness. He had definently gotten it from his godfather, Sirius. He should go to see Sirius and his husband Remus this week. "Oh of course you are, that was a stupid question" the son groaned, "Please, use silencing spell. Your moaning is embarrasing me. Could you not scream like that please?"

"HARRY" the father yelped, his face turning deep red. "See ya! Hopefully you can walk when you leave!" the son grinned and ran off to his friends who were giggling. The read head and the nerd. That's what the father liked to call them.

He sighed and continued walking. He finally arrived to his destination and knocked on the door. "Do come in! The door is open" was yelled from the inside. He opened the door and stepped in, closing the door behind him.

Regulus smiled and stood up. "Hi J! How was the trip?" James smiled and walked over to him, kissing his cheeck. "Oh just the usual, darling. How are you doing?"

Regulus smirked and moved his hands to rub his waist. "Well, you know" he leaned closer to James' ear, "I'm horny." James blushed deeply, letting Regulus' fingers rub his waist. "Interesting" he muttered. "Ain't it?" Regulus chuckled and moved his hands to open his shirt, "It's great that you are here. We can do something about that" he muttered. James hummed, watching as Regulus's fingers moved over his abs and moned as they pinched his nipples. "I already put a silencing spell, figured you are going to be loud" he smirked, reading James's thoughts.

James groaned and nodded, letting his shirt fall off of his shoulders. Regulus whisteled as he stared at him and then leaned towards his neck. James tilted his head for him as Reglus bit his neck. Regulus worked with James' pants, taking them off. James stepped out of them and pushed his shoes off. Regulus rubbed James' tip through the boxers, making the older one shiver.

"Please sir, fuck me~" James moaned into his ear. Regulus smirked and turned James around and pushed him down on the table. "Be a good slut for me and wait for me to strip" Regulus muttered, making James nod. Regulus took off his pants and boxers, stepping out of his shoes. He pushed into James' ass with out a warning, maknig James hiss.

Regulus rubbed his back, "It's okay" he whispered into his ear. James nodded and took a deep breath. "Okay, move" he saida minute later. With the consent given, Regulus started moving slowly. James held to the edge of the desk as he felt his dick being rubbed against the desk. Regulus went faster and moaned, "Fuck baby you are tight~"

James moaned loudly when Regulus again sped up. He soon couldn't stop moaning as Regulus was slamming into him, making his whole body shake. James screamed out his name. Regulus smirked heavily and started attacking the spot with fast and hard thrusts. "Please~! Please~! Let me cum sir~!" James screamed out.

Regulus chuckled and slapped his ass, "Cum for me baby~" JAmes moaned and cummed all over, at the same time feeling the satisfaction of being filled.