Being a spy was exhausting. Not that Peter didn’t enjoy it, watching the people who swore to protect him get screwed over was kind of fun. The looks on their faces when Death Eaters would show up to a secret mission would never get old. Screwing over Dumbledore was another positive. Dumbledore never even asked Peter personally to join the Order of the Phoenix. Of course he asked Remus and James in one on one meetings at school. Guess he assumed Peter and Sirius would simply tag along.
Peter tried to subtly get Sirius to join him as a spy but the idiot was too daft to pick up on his hints. It was for the best honestly, Peter could use Sirius as a scapegoat if ever needed. The day Sirius ran to a barely injured Remus rather than Peter who had almost been hit with a killing curse was the day he knew he would have no guilt taking him down. He had also been enjoying ruining that little relationship. Peter had no idea what Remus was out doing all the time but it was the perfect opportunity to sow the seeds of doubt into Sirius’s mind. The Order knew there was a spy so it was becoming way too easy to get his friends to turn on each other.
Despite all the fun he was having, Peter was still exhausted. He was attending so many meetings. Meetings with the Dark Lord. Death eater meetings. Meetings with Dumbledore. Meetings with the Order. And his least favorite, meetings with the boys.
The other three decided that in these hard times, the four of them should try to spend at least one night together every week to keep up their “bond”. Peter thought it was absolutely ridiculous considering he himself stopped calling them his friends a while ago. The day he took the mark was the day he severed any emotional ties he had with those he used to call his brothers. They could never protect him or care for him the way the Dark Lord did. He was special in Voldemort's eyes. He meant something.
This brought Peter to now, leaving an Order meeting where Dumbledore had announced that he had a spy within the death eater ranks. This didn’t make Peter nervous. No death eater ever saw his face due to the masks and Peter only ever spoke out loud when he was alone with the Dark Lord. There was nothing that could lead to this other spy finding out about him. But it was a concern for his master, so Peter tried to be as discreet as possible leaving the meeting.
Just as he was about to reach the apparition point, someone grabbed his arm. Peter turned to see the face of his childhood best friend, James. ‘Hey Pete, I was just wondering if you wanted to come over tonight? Sirius and Remus are free and we figured we could have a night in. Just the four of us.” The look on James’s face was so genuine that Peter almost felt bad about saying no. He really needed to get this information to Voldemort.
“I don’t know mate. I’m really beat after that raid this morning, rain check?” Peter turned to continue walking but then the grip on his arm only tightened. Peter turned to see a fierce look in James’s eyes.
“No Peter. We are doing this tonight. Now let's go.” Without letting go of Peter’s arm, James walked to the apparition spot and pulled Peter close. A second later they were standing in the living room of Potter manor. James had moved in permanently since the passing of his parents, Remus and Sirius as well. They had offered a room to Peter but he figured getting to all his meetings discreetly would be difficult when living with all of them.
As Peter looked around he saw Sirius sitting in an armchair and Remus leaning behind it with his arms folded on top. Both of them had neutral expressions on their faces. This sent an uneasy feeling down Peter’s spine. James still hadn’t let go of his arm.
“Hey boys, so what is the drink of choice tonight? Firewhiskey? Butterbeer? Good ole fashioned vodka?” Peter let out an uncomfortable laugh when no one replied. They all continued to look at him with blank faces.
Remus moved from around the chair to sit on the arm next to Sirius. “Pete. I don’t think we will be drinking tonight. Instead I would like for you to listen to a story from our friend here.” It was then that from around the corner, Regulus Black walked into the living room. Regulus Black who was a known death eater, a low level one, nothing but a potion maker, but still a death eater. Regulus Black who James had very publicly dated back in school, then broke up with in a massive blow up in the middle of the school corridors. That was how everyone knew he was a death eater, James had yelled it in front of everyone then dumped him. Regulus Black who was the one person Peter had ever taken his mask off in front of other than Voldemort. Shit.
“Hello Pettigrew. Fancy seeing you here. You can imagine my shock when someone came into my lab asking for a concealment potion only for him to take off his mask and it turns out to be one of my husband and brother’s best friends. Now tell me Peter, what exactly was I supposed to do with this information? Keep it to myself? Wait till you helped plan the murder of the people I love most in this world and then step forward? No. Let me tell you what I am going to do. I am going to reveal myself as the spy for the Order. Then I am going to turn you in. I am going to testify in court and I am going to smile as they send you off to rot away in Azkaban. Then I am going to go and kill your precious master. After that you won’t have to wait much longer for the rest of your pathetic friends to join you behind bars.” Regulus had been slowly walking towards Peter and as he finished talking he was right in Peter’s face. Peter could see the storm brewing in his grey eyes.
“Wait, husband? Spy? You and James broke up and you left everyone to be with the Dark Lord.” Peter was barely able to make out the words as he said them.
“Oh yes of course you wouldn’t know. You see I was forced through the imperious curse to take the mark. So naturally I went to James about it. He didn’t blame me, in fact we made a plan. We would pretend to break up, I would join as a low level death eater and act as a spy for the order. Of course no one could know, not even Remus and Sirius. They didn’t find out until about a month ago when James begged to have Sirius at our wedding. And well Sirius can’t know anything without telling Remus so here we are. We were planning on telling you as well until you walked into my lab last week.”
“Well I’m totally fucked aren’t I?”
“Looks that way mate.”
Peter looked around at the four men in the room. He would have no regrets for what he was about to do. “You know I always said I would take down Sirius. I guess now is my chance.”
Peter then stomped one of his heels down on top of James’s foot causing him to let go of Peter’s arm and stumble back. Peter pulled out his wand and shot the killing crude across the room in Sirius’s direction. Luckily for Sirius, Regulus stood in front of the blast and put up a powerful shield. The curse bounced back and barely missed Peter as it flew by and hit the wall behind him, leaving a crack in the shape of a lightning strike. Before Peter could try and send another one, Regulus wordlessly shot a binding spell and Peter felt his limbs lock up. It was then that Remus walked over and punched Peter square in the face, the force of it knocking Peter onto the ground.
Peter was looking at the ceiling when he saw four faces lean down to look at him. Since his jaw had been locked as well, Peter tried sending a menacing stare at all of them.
“Awe look, he’s trying to look threatening. That's adorable.” Peter had never wanted to kill Sirius more in his entire life.
“Okay but can we all take a moment to appreciate how hot Reggie is. That was the single sexiest thing I have ever seen him do in his entire life.” Peter tried to roll his eyes on James’s comment. Of course that is what he would be focused on at this moment.
‘Ew Prongs no, I do not want to talk about my baby brother's level of attractiveness. We can however talk about how sexy that punch was. Good job babe.”
“Sirius?”
“Yes my love?”
“Shut up.”
“Yes sir.”
Peter felt himself being lifted by a levitation spell and everyone’s face went out of his view. He heard Regulus’s voice as he was being moved towards the front entrance.
“Someone send a Patronus to Kingsley and Moody. They will want to handle it from here. Oh and James? We can recreate that little scene later if you would like.”
“Oh Merlin, ew no! Come one Remus, we are leaving these disgusting heathens and taking Peter in ourselves. Come on you filthy rat.”
And with that Peter was taken to the Ministry and put into custody. And Regulus held up his word. He did indeed smile as they led him out of court towards Azkaban.