Do not judge me, mortals!
So I recently became obsessed with rp and in one of them you get with your best friend and your boyfriend is not happy about it so it leads into a whole confrontation. So that's kinda where I'm going with this with one Sam Winchester. Enjoy!
Brought to you by Noah, the guy in this RP. And Liam, your ex. Fuck Liam.

   Sam sighed as he watched you flipping through the pages of a book, your expression showing you were completely focused on what you were reading. He turned the page of his own book, not really paying attention.
   You had come into the hunter life about four or five years ago. One of your friends had died and two very attractive FBI agents had shown up at your door to ask questions.
   Turns out, they were hunting a werewolf and your friend was far from the only victim. By the end of it, you had lured it into a trap and defeated it singlehandedly. As Sam stared at you in wonder, Dean asked you to join them. You agreed.
   That was four, nearly five, years ago. You had become almost as famous as the Winchesters and Dean had basically adopted you as a sister. Sam...is another story. Everyone knows the two of you as best friends but there's a bit more to it. He doesn't want to admit what his true feelings for you are.
   So that's what brings you to this moment. As usual, the pair of you are the ones doing research while Dean is off playing detective. Sam stared at your face, his feelings starting to bubble to the surface all over again.
   You looked up from your book. "Sam? Is everything ok?"
   He shook his head. "I wanted to tell you..." He tried to think of what to say.
  Suddenly, his phone rang and he groaned. He really wanted to tell you how he felt. Shaking his head, he said, "Let me answer this and we'll talk, ok?"
   You nodded and watched as he left the room. In truth, you wanted to hear what he was going to say. You couldn't explain it but it seemed important. Sighing, you turned back to your book.
   Sam answered his phone. "Hello?"
   On the other end, he heard a voice that made him internally groan. "Hey, Sam. Have you seen (y/n) today?"
   Liam. Your boyfriend now. He hated Liam with a passion.
   Liam was Dean's friend and the two of them often went on hunts together. During one hunt, he met you. The rest is history.
   Sam never liked that Liam got you first. But his jealousy wasn't the only reason he couldn't stand the prick. He knew a darker part of Liam, one he didn't want to tell you as long as you seemed happy with him.
   "I've been trying to get ahold of her for hours and I figured since you're her best friend...she'd be with you." Liam chuckled but there was an underlying threat to his words.
   Oh to hell with it. "Yea she's with me. What do you need her for?"
   "*Sighs* It's our three year anniversary, Sam."
   Sam felt his heart drop. Three years. You'd been with this guy for three years.
   "Anyway, can you let her know I'm on my way? I'll be by your place in an hour."
   Sam nodded then realized he couldn't hear him over the phone. He cleared his throat. "Yea sounds good. I'll let her know."
   "Thanks, man. See y'all soon."
   The line went dead.
   Sam had a horrible sense of foreboding. Why hadn't he already told you how he felt? Why did he wait so long, knowing you were with another guy? Then he sighed as he knew the answer to that question: You were with another guy.
   He slowly strolled back to the library, thinking on how much he'd messed up. Once there, he stopped in the doorway. You finally noticed and looked up.
   "Hey, Sam." He bit his lip. "Everything ok, Gigantor?"
   He couldn't help it. He laughed. You were just so sweet with the perfect mixture of sass, sarcasm, and goofiness. "I'm not that giant. You're just a dwarf, shorty."
   You blushed. "Nuh uh. You're definitely just freakishly tall."
   He chuckled then his expression turned serious again. "That was Liam. Your boyfriend is looking for you." He clenched his fist in annoyance. "Apparently he's been trying to get ahold of you for hours."
   You stood up quickly. "Oh my god!" You checked your phone to find dozens of missed calls, all from Liam. "It's our anniversary! I almost forgot! Oh I'm a terrible girlfriend!"
   You headed to the door. Sam was still standing there and he stared at you with an unreadable expression. "Sam, can I get through, please?"
   He groaned. "I need to talk to you about something."
   You stared up at him in confusion. All he could think was how adorable you were. "What's that?"
   "Why him?"
   You rolled your eyes at his annoyed tone. It wasn't the first time Sam had gotten annoyed when it came to your boyfriend. "Really? This again, Winchester?" He winced when you referred to him that way. "Some people would think you're jealous or something."
   You started laughing at your own joke. Sam, however, didn't seem amused. Instead, he was uncharacteristically quiet, turning his face away from you. Your laughter died in your throat as you realized.
   "Sam...are you...jealous of Liam?"
   "That's an impossible question for me to answer." Sam said, quietly. You scoffed. "But yes. Is that what you want to hear?"
   "Why?"
   Sam exhaled sharply and stared into your eyes. "Because he has something I don't. Something I want desperately."
   You shrugged. "What could Liam possibly have that you don't?"
   He took your hands in his, holding them in his much larger ones. When he turned his gaze back to you, his gaze was even more intense, those hazel eyes shining with emotion.
   "You."
   You blushed as the implications of his words sunk in. "Are you saying what I think you're saying?"
   "I guess that depends on what you're thinking." He remarked.
   "I...I don't want to make a fool of myself if I'm wrong."
   "Then what if I tell you? What if I tell you that I think about you all the time? What if I tell you that I can't stand when you talk about Liam because he doesn't deserve you? What if I tell you I'm jealous because I want you all to myself?" He continued staring into your eyes, gauging your reaction. "Because you're mine. You've been mine since we met."
   You shudder, not knowing how to feel. Sam's gaze is still so intense. "Sam..."
    He dropped your hands to your sides. "I'm sorry. I didn't mean to tell you all that."
   He turned and began walking away. You took off after him, struggling to keep pace as every step he took was at least three of yours.
    "Sam, wait!" You pleaded, rushing to grab his hand. "We need to talk about this!"
   "What do you want me to say?" His voice was strangely soft and calm. "That I lied? Because I meant every word."
   You bit your lip. "I know."
   He stopped in his tracks. "What do you mean?"
   "I mean that I've known you for years. You've never lied to me yet and I know you wouldn't start now. Especially about something like this."
   Sam searched your face. For what, he wasn't sure. "I just wanted you to know how I felt."
   Finally, he sighed and turned away. "And how do you feel?"
   He chuckled but there was no humor in it. Shaking his head, he turned back to you. "I'm in love with you, (y/n)."
   You were speechless. Sam sighed and began walking again. You followed him, running to catch up. "How long?"
    "What?"
    "How long, Sam?"
   He was quiet for a moment, thinking. "Since shortly after we met. When you took out that werewolf."
   You couldn't believe what you were hearing. "Why didn't you tell me?"
   Sam stopped in his tracks and you ran into the back of him. He turned and grabbed your hand. "Would you believe I was scared? Yea I know we fight monsters everyday but I'm too scared to tell the woman I love how I feel." He shook his head. "Believe me, the irony is not lost on me."
   You nodded. "I'm sorry we never got together then because I had a crush on you too." He looked down at you in surprise. "But I never thought you'd like me back. I mean...you could have any girl you wanted..."
   "I don't want them, (y/n). I've wanted you since day one."
   "Well I guess I don't see what makes me so special then." Sam exhaled sharply. "I'm sorry. I...don't mean to be so down on myself. I just...I don't know."
   He wrapped his arms around you and pulled you into his chest. "Why did you choose him?"
   You shrugged. "I can't remember. Anyway, I don't have time right now. I need to get ready."
   Sam didn't want to let you go. Instead of letting you go, he grabbed your chin with his left hand and tilted your face up to his. He hesitated a moment to check if you were ok with this. When he saw nothing but love and admiration in your eyes, he went for it, laying his lips over yours and kissing you.
   Immediately, you kissed back, your fingers tangling into his hair. You stood on your tiptoes. His hand moved from your chin to cup your face. His other arm moved behind you to hold you in place.
   Sparks flew behind your eyes. You always wanted to kiss Sam. But you were always too scared to make a move.
   After a few minutes, he broke the kiss. "I'll let you get ready now."
   You sighed but nodded. Turning on your heel, you walked to your room and shut the door. You leaned against it, catching your breath. You didn't know how to feel. All of sudden, your friend of so many years just told you he loved you. He kissed you. Not that you didn't like it. But what were you supposed to do now?
   Shaking your head, you got dressed. The whole time your mind was on Sam and that kiss. You sighed as you heard the sound of Dean and Liam entering the bunker, saying their hellos to Sam.
   Quickly, you ran your fingers through your hair to fix it. Sighing, you resigned yourself to an awkward night, forced a smile, then headed downstairs where everyone was waiting.
   Immediately, a smile broke out over everyone's faces at your appearance. Liam walked over and slung an arm around your shoulders. "You look perfect, sweetheart. Doesn't she look perfect, Winchesters?"
   "Yea she actually does look good." Dean said.
   Sam was quiet for a minute then he finally responded, "You look beautiful."
   "Well now that we've established I look good," you said with a laugh, "how was your trip with Dean?"
   "It was fine. Dean saved my ass from a pack of vamps. Once again, I owe you, Winchester."
   "Don't worry about it." Dean waved him off.
   Liam's grip on you tightened. "Anyway, we're headed out for our anniversary. Don't wait up."
   He led you out to the car and, as you drove away, you glanced at Sam one last time.
   Dinner with Liam was awkward. You tried to remain upbeat, offering gentle smiles and asking him about his week with Dean. His responses were short and dry, his focus on the food in front of him. You wanted to ask what was bothering him but thought better of it. Your mind wandered and you thought about Sam, that kiss...
   Before you knew it, the date was over and Liam was in a hurry to get you home. He threw some money on the table and grabbed your hand.
   Moments later, he was driving the pair of you back to his place, driving too fast and ignoring stop signs. You resisted the urge to groan. He was in one of those moods and you'd have to fake a migraine. You were in no mood for what he had in mind tonight, not with all the thoughts in your head.
   *Writer here: I'm sorry for this next part. Warning for abuse and mention of rape. If you want to skip it, skip down to the  ***
   Liam parked then led you to the door. Once inside, he locked the door and turned to you.
   You expected him to get right into it and prepared to make an excuse but he shut you up as he spoke: "So who is it?"
   "Who's what?" You asked, confused.
   "The other guy!" He practically growled.
   "There's no other guy, Liam." You sighed. He was in one of those moods again.
   "Really? Because your lips are swollen like you've been kissing someone a lot and I know it wasn't me." Crap! You thought, trying to think of what to say. "It's Sam Winchester, isn't it?"
   You turned. "Liam, whatever you think is going on--"
   You were cut off as he backslapped you to the floor! Pain spread through your face and you cried out as you hit the floor.
   Liam grabbed you, roughly. "You're mine! You belong to me! No one else can have you, get me?!"
   Anger and rage built up inside of you. "No! I won't stand by and let you treat me like this anymore! I'm leaving!"
   You rushed to the door but he beat you there. He punched you in the back and grabbed you by your hair. "I don't think so. You're gonna stay right here. No more running away, whoring yourself out. If you even think of leaving, I'll kill you. If I can't have you," he grabbed your wrist with his free hand, "no one can."
   He led you to the room, you sobbing all the way.
                         * * * * *
   You woke up around 3 am. Liam was fast asleep next to you, snoring loudly. Quietly, you wiggled free of his grip. Luckily, he was konked out from your earlier activities so you quickly threw on some clothes. Instead of running for the front door, you opened the window and escaped out that way.
   You ran...ran like your life depended on it and you felt like it did. Eventually, you found the bunker and snuck inside with the key Dean had given you.
   You found Sam in the library, his nose in a book. "Sam?"
   He looked up and, seeing your bloody and bruised face with tears falling down your cheeks, he rushed to your side. His hands, rough yet gentle, moved your head from side to side to see the damage.
   "What did he do?" His anger was obvious and you knew one wrong move would cause him to lose his already thinning patience.
   Your lip started to tremble as you fought back tears. "He...accused me of cheating on him with you. Then he hit me."
   Sam pulled you close and hugged you. He accidentally brushed up against where Liam had punched you in the back and you cried out in pain. "Where all did he hurt you?" Sam's voice was cold.
   "He slapped me, punched me in the back, grabbed me roughly, and..." You didn't want to admit the last part.
   "What?" Sam asked, anger clear on his face.
   You shook your head, stubbornly. "I don't want to say it."
   Sam took your hands as gently as he could. "Please tell me."
   "He said that he'd kill me if I left. He said..." The tears started to fall as you remembered what he said. "He said if he couldn't have me, no one can."
   Sam looked furious but he forced himself to remain calm. "What did he do?"
   "You know what he did."
   "I want you to say it."
   "He...raped me."
   Immediately, Sam turned and rushed to the door. You chased after him. "Sam...what are you going to do?"
   "We're going to have a little talk with your ex."
   "Ex?"
   "You think I'm gonna let you stay with a bastard like that who hurts you?" You look down and bite your lip. "How long has this been going on?"
   "Longer than I want to admit." You started to cry and Sam turned back to you, wiping away your tears. "I wish I would've been with you this whole time. You're the only person I ever truly loved." You said the last part quietly, meaning to say it in your head.
   You looked up and Sam took you into his arms as gently as he could manage. "I wish you would have too. I'm so sorry this happened to you."
   "But if it's not too late, I'd like if we're together now."
   Sam stared into your eyes and a smile broke out over his face when he saw the sincerity there. "I'd love that."
   His lips pressed against yours, gently yet urgently. You gripped his bicep to gain some leverage, pressing yourself into him. Sam quickly slowed it down, not wanting to hurt you.
   "I still want to teach him a lesson."
   "Well I need to break up with him anyway. Will you come with me?" You ask, widening your eyes.
   "Like I'd let you go on your own. Come on."
   The pair of you got into Sam's car and drove back to Liam's house. The whole way, you had a bad feeling. Eventually, you make it and get out the car slowly.
   Sam saw how nervous you were and took your hand. "Don't worry about it. I won't let him ever hurt you again. If he even tries, I'll protect you. I promise."
   At the door, you knocked, nervously waiting for Liam to answer. Moments later, he opened the door and smirked. "So you decided to be a good girl and come back?"
   "Um...* You bit your lip. "We need to talk about something."
   Liam grabbed you by your wrist and pulled you into the house. "Damn right we do." Sam followed both of you into the house and Liam stopped dead in his tracks. "Sam..what are you doing here?"
   "We need to talk."
   "We have nothing to talk about." Liam remarked, coldly.
   "I'm here to tell you to back off. She's mine now and I won't let you hurt her anymore."
   Liam turned to you angrily. "So...you ran off to tell the guy you're cheating on me with our business?"
   "She didn't have to tell me anything. I know she wasn't bruised or bloody last night before she left and if that's how she came to me this morning, something happened. How dare you lay your hands on her?!"
   "Yea well...women need a firm handling." Sam clenched his fist so hard he cracked his knuckles. "So don't worry about what I do with my girlfriend."
   Sam practically growled in anger. "That's the thing. She's not yours anymore. She's mine." He puffed his chest up in pride of that.
   Liam turned his gaze onto you. "It's over, Liam. I can't be with someone who would hurt me just because of his own jealousy."
   He lost his temper then. "Do you remember what I warned you about last night? I think you need to learn your lesson."
   He attempted to punch you but Sam caught his fist and twisted his hand around. "I don't think so." He grunted. He punched Liam in the face and a fight ensued.
   Sam won, of course. He's not famous for nothing. "Now...I'm gonna take my girlfriend home and you're gonna leave her alone. You won't call or text or harass her and you're definitely never gonna lay a hand on her. Got that?"
   He turned his attention to you. "C'mon, sweetheart."
   You ran into Sam's arms and he held you. Taking your hand, he started to lead you away when you heard the click of a gun. You turned in fear, to find Liam holding the gun.
   "Or...I take my girl back or I kill her right here."
   Sam stepped protectively in front of you. "Over my dead body."
   Suddenly, you heard a shout. "Hey, dickbag!"
   Liam turned around in time to get punched in the face by Dean. He fell to the floor, blood spewing from his nose.
   "Dean?"
   Dean shook his head. "You need to be a little quieter when you're talking, Sammy. I heard every word the two of you said. I'm so glad you decided to come here instead of just fucking because I really don't want to hear that."
   Sam gave Dean his patented "annoyed moose" face.
   "Liam, man, what the hell were you thinking? There's a lot of things I'll let someone get away with but laying hands on a woman ain't one of them. You stay away from (y/n). You stay away from my brother. You stay away from me."
   He patted the pair of you on the back. "Come on, you two. Let's get the hell out of here."
   "But, Dean, we're friends."
   Liam looked pathetic, laying on the ground, still bleeding from his broken nose. Dean shook his head again. "Not anymore." He said coldly.
   Then the three of you left, headed back home where you could celebrate. You were finally free.

Sorry to end it here. I just didn't know where to end it and this seemed like a good spot. Who loves overprotective Sam Winchester?