My girlfriend cheated on me! A new kind of submissFor those of u who haven’t read my previous stories allow me to give u a quick summary…I live in a house with two roommates “one male and one female”I have only recently started with sexual experimentation which led to my situation where my female roommate became my mistress and have watched my girlfriend have sex with another guy once before this story which I never considered cheating since it was a one time experience that included me and my mistress.This is a story about how my girlfriend cheated on me for the first time”as in had sex with another guy behind my back” and the events that followed…The story is about my self, my girlfriend Sue “5’6″-130 #- 24 years old” and my friend and roommate Sam It all started about two months ago, me and my friend went to a birthday for one of they guys girlfriends, since the crowd will probably be mostly girls my girlfriend decided she wanted to join as well, after getting ready we all went to the party, my girlfriend obviously made an extra effort to dress up since it was a predominantly female party so she was looking extra sexy that night.Once we got to the party we said hi and after the introductions and cake we everyone split up into groups drinking dancing and chatting.We were sitting out on the balcony just hanging out… The main topic of the evening was the birthday girls gift from her boyfriend, she had been saving up for a boob job for a while and a few weeks before her birthday her boyfriend gave her the money that was left and she was able to get the job done and she was very happy with the results! I don’t think there was a girl at that party who she didnt take aside to show off the results, which led to the conversation of real vs fake… My girlfriend was naturally busty so she was arguing that even though it was a good boob job it still doesn’t beat real boobs, while the other girl was saying that it doesn’t show and the results are better than if she had real ones.After a while of arguing, drinking, and asking guys and girls for their opinions Sam convinced them to just take them out and we would compare. Both girls rejected the idea to take them out infront of everyone but Sam was able to convince them that he would be the judge, the three of them went to the laundry room so that he can see them and decide which is better.After a couple of minutes they came out laughing, I asked who one and Sam said Sue was the obvious winner. Sam kept on joking about it the whole night, he even made a fake certificate that said “jugs of the year 2013” which he tied to a string and gave her to wear for the rest of the party. On the way home I found out why she won, while in the car he leaned over from the back seat and grabbed my girlfriends boobs, I reacted in shock “dude that’s taking it too far” he laughed and said”But that’s why she one, both had great looking tits but hers felt a lot better” turns out sam had a lot of fun touching both of them!I just ignored them, when we got home I decided to go take a shower then just fall asleep, I said good night and went to my room, after my shower I walked out to get a bottle of water, When I opened the door I was shocked with what I saw! They were sitting on the couch joking around while my girlfriend was topless!She seemed to be enjoying the attention as she let him stare and touch comfortably! He even took a few pictures!Initially it bothered me, but the curiosity to see how far things would go kept me quiet, they still didnt notice me so I just watched from my room as Sam enjoyed my girlfriends boobs.As the laughs stopped and things turned serious, sue got on the ground on her knees, unzipped his pants, and pulled his dick out… He was hard and huge! His cock was about 9″ but really thick!Without saying anything the locked at each other as she stroked him for a few seconds then opened her mouth and started sucking his cockI stopped thinking and just enjoyed the show as I jacked off to the sight of my beautiful girlfriend sucked on another guys dick… He was enjoying it and forcing her head down as he fucked her face he was saying stuff like “ur so fucking good at this” “Do u like sucking my cock?”She didnt reply and just kept sucking and licking his cock.He got up and made her lay on her back, he got on top of her and spread her legs and as he started kissing her he slid his dick inside her… I stood there watching Sam fuck her brains out on the floor, I came almost as soon as he started fucking her… I remember after I came I wanted to walk out and stop them but I just stood and watched.I cleaned myself up and decided to go to bed and see how things go in the morning, as I laid in bed I could still hear Sue moaning “at one point almost screaming” I loved the taboo about it, as the love of my life was another guys slut for the night and I did nothing about it, I even got up and jacked off again while watching them, Sam increased his pace shoving his cock into her faster and harder then with one hard thrust he pushed all the way in and started cumming! She moaned “yes yes oh my god I love Escort Bayan it”He came and I came again. I cleaned up again and acted like I was sleeping.Sue came to bed soon after still trying to catch her breath. She slept and I just laid there thinking about what I saw all night… Was it ok? Why didn’t I stop them? Do I really like this? I decided to just play along and see how far this goes.I woke up the next morning, my girlfriend wasn’t in the bed, I walked out and she was making me breakfast, I asked about Sam and she told me I just missed him! I had breakfast and waited quietly to see if she would come clean and tell me what she did! To this point I thought she would regret it but to my surprise neither her or Sam admitted came clean no matter how long I waited!Over the next few days I watched or heard them on fuck whenever they thought I was sleeping, I even videotaped them once to have something to watch when I’m alone since during this time all I could do is jack off to relieve myself and every time I try to fuck her she would say she’s tired or has a headache.A few weeks have passed and I have come to realize that I was ok with sharing her and that I enjoyed the idea of my girlfriend pleasing another guy, and since I wasn’t getting much attention anyway I decided to take things further.One night, while Nicky was gone on spring break and we had the house to ourselves, we were hanging out watching a movie with sue resting her head on my lap, I started to play with her boobs. She pushed my hand a couple of times and gave me a look as if to say “Sam could see us”Well Sam did see us and jokingly remarked “get a room u two”I already have decided that I want things to be out in the open so I replied”Why? It’s not like u didnt see them! She could be topless and it still wouldn’t be anything new”He laughed and pulled her boobs of the year award out of a bunch of paper that was on the desk and gave it to her.I continued playing with her boobs and then slipped my hand under her shirt, I could see him trying to hide the fact he was watching, I started to lift her shirt which she reluctantly let me do… It got to the point where her shirt was all the way up and she was practically topless.Sam was now just watching us and this was really making her horny, I sat her up as she was breathing deeply and took her shirt off, I started kissing her back and neck while Sam was watching us and getting comfortable staring at her half naked body, he moved closer which made it obvious to her that at this point everything goes!He reached to her breasts as she reached down under both our pants.I saw her stroking him under his pants so I pushed her head down to start sucking him, she pulled his dick out and started to suck his cock infront of me.I say back and watched him enjoy her skillsI moved closer and she looked at me, we made eye contact with Sams dick still in her mouth, she smiled and got up.She stood infront of us and slid her pants off, she stood naked in front of us touching herself looking at us stroking our hard cocks.She got back on her knees and stroked his cock with one hand as she swallowed my cock and gave me an amazing blowjob!She sucked my cock while stroking his, the more she sucked me the faster she stroked his cock… Soon I experienced an amazing orgasm, she kept the head of my cock in her mouth as I came and when I was done she proudly showed me what she collected in her mouth before swallowing it.I got up to wash up quickly and grab some water, when I came back a minute later I saw that they have moved to my bedroom.As I walked into the bedroom I saw Sam lying naked in my bed with my girlfriend between his legs sucking his cock.I sat on the edge of the bed next to them watching as she was sucking him and really putting her heart into it, she was alternating between sucking his cock then licking his balls while jacking him off… I don’t think she ever half the effort while sucking me and rather than feeling jealous I enjoyed the great show as she pleasured Sam.She would look at me straight in the eye with a smile while biting her lip, then open her mouth and take as much of his cock in and suck while maintaining eye contact… I loved the fact that she felt no shame of what she was doing and she knew the more she pleased him in front of me, the more she pleased me.Sam didn’t seem to care about the fact I was there either! He started getting rough with her pushing her head down on his cock while talking to her saying things that usually would be insulting but only excited both me and her!”Suck my cock! Do u like sucking two cocks in a row? I never thought u would be such a slut and would be such an expert!”He seemed to also enjoy sharing her as he really got into a dominant role treating her like a slut.Finally he started cumming… Got up on his knees and held her head in place just in front of his cock. She opened her mouth and both me and Sam watched as he filled her mouth with his cum… When he was finished she closed her mouth and sat back, he told her not to swallow and to keep it in her Bayan escort mouth”Taste it! U worked so hard to make me cum so enjoy it”As I watched him enjoy talking down to her he finally acknowledged the fact I was in the room “Open wide and show your man how u love the taste” which she did so he told her to swallow!He got up and went to the bathroom and Sue looked at me and said “my jaw really hurts that was fun but a lot of work! Next time talk to me if u wanted to do something new”I just smiled as I thought she probably still doesn’t realize she was caught cheating and this was all just me trying something new.Sam walked out of the bathroom and it looked like he was feeling awkward!He said “I don’t know what to say… Are u ok? I don’t know!”Before I replied he picked up his pants and walked out of the room.I caught up with him to his room to talk and put him at ease, also I wanted to lay ground rules.———————————–(If you are just reading for the sex u can skip this conversation… But if you have been reading my stories or are interested in my future stories you might want to read it cuz I’m going to basically set the rules for our future relationship)I walked into his room and he was on his bed just laying down, I sat at the foot of the bed and this is how our conversation went:Me: I know you feel weird about all this but u shouldn’t! I know about what has been going on between u two and this was just to make everything out in the open.Sam: dude I’m really sorry! But I wasn’t able to help myself, she’s hot and she always flirted with me! I’m ur friend but I’m a man and I could only hold back for so long.Me: listen, you shouldn’t feel sorry for what u did! Any guy would do the same given the chance… I am mad at u because u didnt come clean! But lets ignore the past and talk about what happened today.Sam: I know I went too far today and I shouldn’t have talked to her or treated her like that! She is my friend And I would always treat her with respect, but I sometimes enjoy talking dirty and today I just got into it and wasn’t thinking!Me: u didnt do anything wrong today so again, stop worrying! Me and sue have been going through a very open period in our relationship and I’m happy that ur now apart of it! I only have a few conditions.Sam: so ur not mad?Me: no I had fun today and I hope u did too.All I ask is u follow a few ground rules:1- Never tell anyone about this! You have to keep it a secret.2- you need to be able to keep your relationship as just friends with benefits! And u need to be willing to stop if any problems start! Please don’t harm my relationship with her by trying to start your own.3- If u decide to have sex with other girls, I need you to promise u would always practice safe sex! If u catch anything then we all do, so be extra careful4- Nicole “my mistress/other roommate” will have to be ok with all this since she had been joining us in the bedroomI then told him all about the situation with my mistress Nicky and how me and sue became open to including others in our sex lifeSam: so ur ok with all this right? I mean do I have to ask u everytime? What are my limits with her?Me: as long as u are ok with me joining then I’m ok with u two doing whatever, as for ur limits with her u need to ask her! Sam: this is kind of weird and sudden! But I promise to follow the rules but, I really can get aggressive in bed and sometimes say mean things so u need to tell me if u feel uncomfortable, this is all new to me so don’t expect me to know if I crossed any lines!Me: I already explained that I am submissive in bed so watching u being aggressive with my girlfriend is something that I enjoy! This is new to me too but as long as we are all honest and keep an open mind I’m sure we could all have fun! If she’s ok with whatever u do then I am too.As I got up, after feeling like we are all on the same page, I walked to the door he said”Last time I ask, just to be sure, as long as I follow what we agreed on and as long as she is ok with it, I’m not crossing any lines right?”Now that I felt that he is fully on board, I felt comfortable with him and replied “if treating a girl like a slut is what u enjoy and if she’s ok with it then please don’t enjoy yourself and don’t worry about me! Trust me I loved watching u do it”————————————I walked out of the room and updated Sue, she felt embarrassed when she found out I knew she cheated but I just said “I’m ok with you and Sam doing whatever you want! But since we are now in an open relationship there is no excuse to cheat! U need to be promise u wont sleep with another guy unless u make sure I’m ok with it first! I love you and I want you to be completely satisfied just as long as u stay open with me” she kissed me and promised never to cheat again!I walked out to chill and watch TV in the living room, while sitting in the living room I remember thinking”Sue is the love of my life and she defiantly is the girl of my dreams! I’m now one of the lucky ones who is living all of his fantasies! I have a beautiful girlfriend Escort to enjoy, an aggressive mistress who enjoys dominating me and I enjoy being her slave, and a great friend who is now helping me enjoy my cuckold fantasies”Then Sue walked out of the bedroom, she was naked and breathing heavily! It looked like she was masterbating in the room after I have her permission to enjoy herself with Sam.She walked over to me, leaned forward, and whispered in my ear”I love you, and I love how adventurous and open you became!” She kissed me and looked me straight in the eye and rubbed my dick through my pants and said with a smile “I’m going to go show Sam the time of his life! And I would love if u joined, Id love to have two guys at the same time”It seems like although she never got into the femdom role, the slut girlfriend role was definitely her thing!She walked into his room and I sat back and took my dick out… I heard her start to moan from his room and I knew that Sam started fucking her and enjoying his new privileges! I started stroking my dick enjoying the sound of her moans, but once she started calling out to me”Oh baby it feels so good! He’s fucking me so hard! Where are you?”I couldn’t help myself I went to Sams room for a better look.I walked in and she was on top of him in reverse cowgirl, he was thrusting up into her as she bounced on his cock.Sue: baby he feels so good inside of me! Thank you for this… Sam stopped when he saw me and said: last warning! Things are going to get rough so if u like it when I treat her like a slut ull love this! If u don’t then say so now cuz there’s no stopping me later”I smiled and my reply to him was just to take my clothes off, kiss sue, and lay down at the foot of the bed to get a perfect view of his thick cock that was still inside her.She started moving up and down, she started slowly but he just took over and started thrusting up into her, he increased the pace and definitely got much more aggressive Sam: u like it hard don’t u?Sue: yes Sam fuck me I love it!Sam: tell your boyfriend how you like being my slutSue: baby I love it! He fucks me so hard! She got into doggy position and started sucking me while Sam was fucking her from behindIt was all too much for me and I came the second time that nightSam was still going hard and showed no sign of slowing downI loved it! I loved how submissive I felt watching Sam fuck her! I loved how manly he was, fucking her aggressively with his big cock humiliating her and enjoying his new slut!He flipped her on her back and started teasing her, he was rubbing his cock against her pussy while occasionally looking at me and smiling… He made her begSue: please put it in! Please fuck me!He looked at me while I was rubbing my soft dick trying to get hard for round three, he smiled at me and stopped rubbing against her pussy and held his cock in his hands and adjusted right at the opening of her pussy and shoved his big cock all the way in in one hard thrustSue moaned loudly, almost screaming, he continued fucking her hard until he came, finally when he was about to cum he pushed his cock back inside her and just kept it there as he emptied his balls deep inside her! He got up and headed to the bathroom, cock in hand still dripping cum! I walked out and went back to the living room, I was shocked how much she enjoyed it! I would think him fucking her that hard with a cock that big would be painful not enjoyable!I sat in the living room remembering the scene, my girlfriend still on Sams bed, it was just an amazing and submissive feeling!Sam walked out of the bathroom after his shower with a towel wrapped around his waist, he sat next to me Sam: I told u I can be roughin bed.Me: dude I didnt think that roughSam: so I went too far?Me: of course not I loved watching that!Sam: wow if ur ok with that, and I know she likes it, then I’m definitely going to have a lot of fun with herI got up and went to bed.When I woke up it was about 10 amSue was next to me in bed wearing nothing but her panties.I laid there remembering last night stroking my morning wood, I got up and spread her legs and used some saliva to lube my dick, as she woke up I slid my dick inside her… I fucked her slowly and gently knowing she’s probably sore from SamShe wrapped her legs around me and started moaningAs I picked up the pace and she got wetter and wetter she made sure I was thinking about what happened the night beforeSue: sweetie I had so much fun last night! Sam fucked me so hard I loved it! U enjoyed it too didnt u? U like seeing me get fucked dont u? Do u like having a slut girlfriend? Oh baby I loved being fucked while you watchAgain this was all too good and I wasn’t able to last long… I came inside her and laid down next to her, I remembered something important! Both me and Sam came inside her and I’m not even sure she was on the pill! I asked and she assured me she was and there is nothing to worry about.I got up and took a shower and the day pretty much passed normallyOver the next few days Sam made sure to enjoy every chance he got! He would fuck her in the living room, make her suck his cock while he watched TV, I even woke up to him fucking her next to me in my bed! This situation lasted until Nicky got back from her spring break vacation, when she got back things got a lot more interesting but that’s another story so stay tuned!