Marauders smuts/ oneshots

Brother's best friend (James Potter smut)

Warnings: fluffy smut, pet names, OC, Sirius being mad at his twin.

Word count: 1350

I was always the quiet kid. My twin brother on the other hand was the exact opposite of me. I Sieara Black was the twin of Sirius Black. Being his twin was interesting. Thought we did have the same best friends. Remus was my best friend ever. He knew everything about me. Peter was kinda just there I didn't really talk to him. James on the other hand was like a brother to me. He was very protective of me. When ever I was around boys he would get all protective as if I were his little sister he had to protect with his life.

Today I wasn't feeling the best so I just stayed in the common room all day. I had a fever and a stomach ache since this morning. Sirius had just walked in as I was laying on the couch reading covered in some blankets. "Oh hey sis, you ok?" He asked as you looked up at him tired. "Yeah just not feeling the best, where is everybody else" you asked looking around to see if you could find the boys. "Remus is on perfect duty's nd James and Peter are in detention" he stated. "Oh what did they do this time" you said shaking your head laughing. " They wouldn't shut up in DADA" he said. Just as you were about to go to dinner. James came up and put his arm around your shoulder. "Well hello there sweet pea" James said. "Hi Jamie" you said quietly. "What's wrong" he asked with a look of concern on his face."I'm not feeling good today" "aww why don't we go to my dorm after dinner and relax" " yeah that sounds nice" you said.

After dinner you and James went back to his dorm." Do you want to watch a movie" he asked. "Yeah can we watch Dirty Dancing" you said looking excited. "Yes we can watch Dirty Dancing for the 1000 time" he said smiling down at you. He put the movie on. You got in his bed under the blankets to cuddle up with him in a sibling way of course. You got a weird feeling in your tummy when you starting cuddling. When you started thinking you got a weird thought "Maybe I fancy James" you thought. You fell asleep for the rest of the night. When you woke up the next morning you were feeling alot better. James was already up getting ready. "Hey James do you think we could go swimming today Please" you asked giving him puppy dog eyes. "Yeah I guess we could I'll get the boys to come too" he said.

We got the boys and went down to the black lake. "Sieara you coming" ask Sirius. "Yeah one sec" you said as you took off your shirt and shorts. James looked at you as you did. "Yo prongs stop looking at my sister" Sirius said. You jumped in the water. You only being 5'6 had to keep moving to stay above water. The boys were all taller then you so they could just stand. "Come here short ass" James called over to you. You swam over to him as he lifted you up and you wrapped your legs around his waist. "That better?" He asked as you nodded your head. You leaned your head on his shoulder. Remus smirked at you knowingly. "Shut it Remy" "I didn't say anything" he said still smirking. You guys stayed down there for a few hours till it was almost dinner time. You were really tired from swimming and everyone new. "Hey why don't we go lay down I can tell you are tried" James said smiling at you. "Ok" is all you said as you stayed laying on his shoulder burying your head in his neck.
When you guys got bad to your dorm your were already sleeping. He layed you down and got in beside you l. He combed his fingers through your hair. "You don't know how much I like you Sieara" he kissed your forehead." I Like you too" you said snuggling in to him. He was shocked " I thought you were sleeping" he said." I was but I woke up just as you layed down with me" you said looking up at him. As you were about to layed you head back down on his chest he grabbed your chin and kissed you slowly. It soon turned in to a make out session. He started leaving Hickey's down your neck. You started moaning." Don't stop" you moaned out. He took off your shirt and started kissing down your chest. He undid you bathing suit top and started sucking on your boobs. "Stop teasing me" you said. He nodded and took off your bathing suit bottoms. "This is not very fair you know, you need to take some of these off" you said taking his short off and kisses him. He removed his pants and underwear. He moved in between your thighs. "Are you ready" he asked "Yes hurry up " you said. He started eating you out. Sucking your clit he moved his hand to start fingering you. " Oh god James" you missed as he sped up. You were close to finishing when he stopped. You whine out " James why'd you stop!!!" He laughed. " I want you to cum on my cock, can you do that for me?" You nodded. He lined up to your entrance and push in slowly as you load and he groaned. He stopped to let you adjust to the new size. You nodded to tell him he can move.he started slowly getting faster and faster. You were moaning like crazy. "Oh yes James don't s-stop" you missed as he hit your g-spot. You started clenching around his cock. He knew you were close. " Almost there I'm close to just a little longer" he groaned out thrust a little harder. 1,2,3 more thrust and you hit your orgasm. He shot his hot seed into you. Pulling out you whine at the lose of contact. "Shh it ok let's go clean you up" he said as he picked you up and took you to the bathroom. He set you on the counter top and started the bath. You got off and got in with him and he washed you hair and body. After the bath you too got out of the bath and he grabbed you a set of a bra and panties. You changed in too them as he put his boxers back on. You both layed down and cuddled. " You know that was amazing" you said looking up at him. "It really was" he said looking back at you adoringly. " I have something to ask you" James said. " What is it" you asked. "I wanted to ask if you will be mine" he asked. "Of course I will" you said kissing him. Sirius had just walk in as you pulled apart. "Hey what's u- omg www I didn't need to see that and wtf prongs my sister" he said angry turning around so he was facing the wall. " Sirius I have to tell you something" you said as you both for changed in to clothes. " Me and James are dating" you said as he turned to look at you. He was upset but happy for you. " I'm upset you didn't tell me you liked eachother but I'm happy that your together" he smiled hugging you. "I love you bro" "I love you too sis" he left and you and james layed back down together. "You know James I love you and you don't have to say it back but I had to tell you" you said looking at him " I love you too baby" he said looking down at you and kissing you. You layed your head on his chest and he kissed your head. You guys fell asleep and cuddled the rest off the night. You loved him more then anything and were so glad Sirius wasn't mad at you. The end.