My Sister And I Playing With Dad's New Girlfr

My name is Jacob and I live with my dad and my s****r Karen. My mom left us shortly after I was born and I have always asked my dad why and he always tells me "Son if I knew her reasons I would tell you." That I understand now because she never really gave a reason she just left. My s****r Karen is nineteen and I am sixteen and of course we have always been very close and since mom left have always been there for each other whenever needed. Our dad was broken up with the divorce but Karen and I have always pushed him to get back out there date again but he always just kind of shrugs us off. Karen has always been... well unique since one day she decided she was going to become an "emo" I guess there called but to me she has always looked like Karen. She has long black hair with red streaks in it, A tattoo that covers her shoulder and goes down to her elbow, She has her lip, tongue, ears and eyebrow pierced which I can honestly say I would never do. She doesn't really wear all the makeup that her friends do but the cloths she wears drives my dad crazy. He always asks her why she needs to show everyone her body but Karen just laughs and assures dad she will be fine and not to worry about her. I have always kept to myself and other than Karen I have few friends. I have been asked out by many girls at school but have always been to shy to agree to date for some reason. I have been shy most of my life and Karen has tried her hardest to break me of it but with no luck. Karen has tried to hook me up with some of her friends but to be honest they just scare me with all the makeup and stuff. One night Karen and I were having dinner in the kitchen when out of nowhere our dad came out of his bedroom all dressed up and said he was going out with some of his friends. Almost at the same time Karen and I yelled "Great!" this was the first time in a long time our dad went out and we made sure to push him out the door before he changed his mind. Karen and I watched a movie in the living room and talked about how much we hoped he would meet someone. The next day we asked him if he had any luck meeting someone but all he did was smile and say maybe and to us that meant yes. Karen wasted no time asking if he was going to bring her by the house sometime so we could meet her but again we were met with a "Maybe" He eventually told us her name was Mandy and he went out a lot with her to movies and dinner and talked to her on the phone a lot so Karen and I were more excited then he was that maybe he would finally have someone in his life again. One night Karen and I were in our rooms when we heard the front door open and close and our dad call out for us to come to the living room. Karen and I walked downstairs and as we turned the corner we saw a tall blonde girl stand up from the couch with a smile. Our dad put his arm around her and said that this was Mandy. I said hello but Karen gave her a hug which seemed weird but to Karen there would finally be another girl in the house for her to talk to. We all sat on the couch but dad said he was going to get something for dinner and said Mandy could stay here with us to talk and stuff. Dad left and Karen wasted no time starting to chat Mandy up about everything. Mandy said she was going to school and wasn't currently working and had a lot of hobbies and really liked our dad. The one thing that Mandy had said that made Karen and I look at each other was when Karen asked her how old she was and she replied "Twenty seven" I thought it was weird that Mandy was so young but in the end I figured whatever made my dad happy. Weeks went by as Mandy began staying over at the house more and more and it seemed like Karen was spending more time with her than my dad was. Karen and Mandy went to the mall almost everyday and to the movies and Karen even talked Mandy into getting a tattoo. Our dad began getting more an more hours at work so Mandy began spending more time with us than our dad did. One night our dad had left for work so I went into my bedroom to listen to music while Mandy and Karen sat in the living room watching a movie and chatting which I wanted to part of so I just kept to myself. I could hear them laughing from upstairs and talking for hours when finally there was silence. I got up to go get something to drink from the kitchen before I went to bed and made my way down the hall to the stairs. I took two steps and when my eyes met the couch I could feel my feet become like concrete. I watched my s****r sitting on the couch making out with Mandy. I couldn't make a sound and didn't know what to do as I watched them kissing with their arms wrapped around each other. As much of my brain was yelling "Go back to your room before they see you" I couldn't move and was to curious to move. I crouched down and continued to watch listening to them giggling as they slid each others tongues into their mouths. Mandy raised her hands to the air as Karen grabbed onto the bottom of her shirt and pulled it off exposing Mandy's white bra and large breasts. Mandy tilted her head back moaning softly as Karen began kissing her neck,shoulders and chest. Karen reached back unfastening her bra and throwing it to floor as I got my first glimpse of breasts. Karen grabbed a hold of them with both hands and began squeezing them before kissing them and sucking them. Mandy moaned and giggled as Karen sucked on her nipples flicking them with her tongue. Mandy grabbed onto Karen's shirt as she raised her arms to the air before Mandy pulled it off exposing my s****rs black lace bra. Karen had a tattoo above her right breast that I don't even think dad knew she had. Mandy took her bra off and than I was staring at my s****rs breasts which were nice but not as big as Mandy's. They took turns sucking on each others breasts as I watched feeling my dick starting to strain in my shorts as it hardened. They both stood up kissing each other as they started unfastening each others pants before pulling them to the floor. Mandy had pink panties on and Karen had on her lace black thong. Karen pushed Mandy to the couch as my s****r slowly got onto her knees in front of her pushing her legs open as she kissed her inner thighs. Karen slowly grabbed onto Mandy's panties and pulled them off exposing her smooth pussy. I watched as my s****r began eating her out making Mandy squeeze her breasts and moan.My s****r stuck her pierced tongue out and was sliding it up and down like a paint brush against Mandy's pussy. Mandy began moaning louder and louder as my s****r fingered her while sucking on her clit. Mandy smiled as she stood up and placed Karen on the couch as she got onto her knees. Mandy grabbed onto her thong and pulled it off tossing it to the floor before forcing my s****rs legs open and began eating her pussy. Karen growled as Mandy began eating her pussy making Karen's back lift off the couch. Karen placed her hand on Mandy's head and began groaning "Eat that pussy baby." Mandy giggled as she began sucking on her pussy harder and fingering her fast making my s****r moan and whimper loudly. I was so focused on what I was watching that before I knew it I had almost fell down the stairs and grabbed onto the rail to catch myself. Both of their eyes shot up to mine as I stood still knowing I was busted. Karen looked to be in shock but Mandy had a smile on her face. "You can come down' she said as it took me only a second to think before I slowly made my way down the stairs. Mandy got up off the floor and sat on the couch next to Karen as I turned into the living room and was standing in front of the couch. Mandy opened her legs and began rubbing her pussy before asking me "Have you ever eaten a girl out before?" I quickly shook my head no as she smirked. Mandy looked at Karen as they both smiled at each other before Mandy said "Do you wanna?" I smirked and without saying a word got onto my knees and planted my mouth onto Mandy's wet pussy. She groaned as I began sucking on her pussy lips and clit before sliding two of my fingers into her. "That feels so good" she moaned as now I could feel my cock throbbing in my shorts. As I continued to eat her out I suddenly heard Mandy say "Now I want you to taste your s****rs pussy". I looked up at Mandy and than over to Karen as she smirked at me. I scooted over on the floor as my s****r opened her legs. I leaned forward and began to slide my wet tongue up and down on her tiny shaved pussy making her moan and grunt. I felt her place her hand on my head and felt her hips begin to gyrate as I sucked on her pussy. "Do I taste good?" she moaned "Yes" I said with her pussy lips still in my mouth. Mandy leaned over and began sucking on her tits as I ate her out making her pussy wetter and wetter. "OK your turn" Mandy said with a smile as she stood up pulling Karen with her. I stood up as Mandy grabbed onto my shorts and underwear and in one motion pulled them to the floor. Both of them smiled as their eyes met my hard cock as I sat down on the couch. Mandy and Karen got onto there knees in front of me but Mandy was the first one to quickly grab onto my cock and shove it into her mouth.I groaned loudly as my s****r watched Mandy suck my cock. Her mouth was warm and wet as she quickly worked her head up and down while rubbing my balls. Karen placed her hand on Mandy's head and began pushing it down onto my cock hard while whispering "Suck his cock baby" I groaned and grunted before Mandy pulled her head off with a smile and looked to Karen and said "Your turn." Mandy scooted out of the way as Karen slowly slid over into her place. My s****r looked up at me as she grabbed a hold of my cock and slowly began easing every inch into her mouth until my whole cock was in her mouth. I groaned loudly as she deep throated me over and over. Mandy placed her hand on Karen's head and began shoving it down on me hard. "You like sucking your b*****rs big cock don't ya slut?" All Karen could do is mumble "a huh" as she never took her mouth off my cock. Mandy pulled Karen up and sat her on the couch as Mandy got down on her hands and knees and began eating my s****r out when she turned back to me and moaned "Fuck me" I got on my knees behind her and slowly guided my cock into her. Her body shot forward and she let out a loud groan as I began slamming my cock into her hard over and over as my s****r said "Fuck her harder" as she moaned holding Mandy's head to her pussy. I fucked her violently my balls slapping against her body with every thrust until I heard her mumble with a mouth full of my s****rs pussy "I'm gonna cum!!" I continued thrusting until I felt her body begin to quiver and her pussy burst all over my cock. Karen smiled as Mandy continued to shake and moan her cum covering my cock. They switched places as I got in position behind my s****r and slid my cock still covered with Mandy's cum into her tight pussy. Karen groaned loudly "Oh my god!" as she started to eat Mandy out again. I grabbed onto my s****rs hips as hard as I could and thrusted into her with everything I had. Something in me had flipped and I began fucking her harder than I had Mandy. I reached out grabbing onto her black hair and pulled her head back as I drove my hard cock into her deep over and over again as she screamed and moaned. I began slapping her ass as I fucked her as Mandy smiled and said "Tear her pussy up" I continued pounding her until she began whimpering "I'm cumming". I mustered everything I had and drove my cock into her over and over until her body nearly collapsed as she screamed "OH FUCK!" Her tiny pussy began squirting all over my cock and onto the floor as she convulsed and groaned. "Damm" Mandy said with a smile as Karen placed her head on her leg as she panted. "Don't stop" Mandy said with a smile as I started to fuck Karen again until I felt my cock ready to burst. I'm cumming I groaned loudly as I quickly pulled out and stood up. Mandy tried to get onto her knees in front of me but Karen almost knocked her down as she quickly grabbed onto my cock and started stroking it as I groaned loudly and shot my massive load onto my s****rs face, mouth and into her hair. We all sat on the couch panting and groaning as we took turns showering and getting dressed. Karen smiled at me the rest of the night until we went to sl**p. The next day during breakfast Mandy had left for school so Karen, Dad and I sat at the table eating when dad looked to us "So you guys have fun with Mandy last night" Karen and my eyes quickly met as Karen smiled and said "Ya it was alright".