11 comments/ 100474 views/ 14 favorites Sister Knows Best Ch. 01 By: LilYaz001 For my 18th birthday I had a pretty normal day. I opened up some presents and had some cake. The only plans I'd made were to spend the next day shopping with my sister at the city she lives in. So we went to her flat to spend the night so we don't get stuck in traffic the next day. The things you should probably know first are that she's 31 years old but still very hot. A 5F-4 high brunette with a nice curved ass and 36DD breasts. I couldn't help but fantasize about fucking her sometimes, right? Me, I was only just 18 and bearing in mind my birthday's in December it wasn't all that surprising we got snowed in. I was still half asleep when my sister came into the room and told me it was snowing so much we can't leave. I just looked at her; she was in a pink bath robe that was loosely tied. "Then what shall we do?" I replied. I was still staring at her. Her silky legs were bare and I could almost make out a lacy thong she was wearing. Her body was damp from a shower she had just taken. The thong actually looked damp as well. It was going up her slit- Yup, camel toe. "Do me." I looked at her in disbelief, waiting to find out if I'd heard her wrong or something. It all felt like a dream. Then she started to untie her robe. My jaw was opening up and my mouth starting to water. I realised she might just be playing a joke on me. I should at least protest a bit. "What are you on about?" As though I didn't understand see wanted me to see her naked. No reply. She just opened it up and let it fall to the ground. Then as she started walking to me from the door. "You make me so wet. All hot guys do. I'm still a virgin you know; and I know you are too so let's have sex. Just once if you want- it can be my little secret birthday present to you." My mind felt like it was going to explode. I looked up and down her body, openly scanning her now. My big sisters body is perfect. Her nipples were hard and I could see them popping up through her matching white lacy bra. Then I got up out of bed, in my boxer shorts I walked over to her and grabbed her hand. I placed it on my tenting boxers and she wrapped it around my cock. She was breathing deep and so was I. I could feel her hand tensing and then unwrapping itself from me. I looked down at her face and a cheeky grin emerged. Her hand sunk under my shorts and each finger slowly started to enclose around me again. Tighter now, without any clothes between her and me. "I want to feel your cum drip onto my hand, big boy." My sister started to wanking me of. First slowly, though after a while she speeded up; and like a pro she got on her knees and started using both hands. Cupping and caressing my balls with one hand whilst pumping her other up and down me. I was almost ready to cum when she said- "Let's take this over to the bed" After I sat down on the bed she let her thong come down and took of her bra. Her huge tits came out and her big pink nipples were a view I couldn't resist. Her pussy was shaven. All but one strip that came down to her clit. After giving me a look she got her knees again blushing by how hot I obviously thought she looked. "Sit back and relax now bro." She said She pulled my boxers down to look at my fully hardened cock and smiled again. All of sudden she opened her mouth and swallowed me. "Aahh, that feels soo good!" I screamed. Her saliva covered my cock as it went deeper into her mouth. My sisters tong spread out under the head of my penis and draped itself around my length. Her lips had actually gotten to my pubic hair and still I was going deeper into her mouth. She whipped her tong against my dick again and again, then moved into a motion were she lifted her head until it was almost of me- and then quickly rushed back down my cock. Again and aging she did this rocking back and forth, increasingly faster. I grabbed the back of her head with my left hand. My fingers weaved through streaks of her smooth, wet hair. Pulling her onto me as she hummed, sending vibrations down my penis. Soon my balls were churning, and I yelled -- "I'm about to cum!" Her reaction- grab my hips and pull her mouth in on me tightening her lips. I could feel the back of her mouth touch my bell-end so I didn't hold back any longer. My cum shot out at an enormous speed, the streams kept on flowing out of me and my sister had no intention of letting a drop of it out of her mouth. Her tong wriggled up and down my shaft as more came out of me. Almost splashing against her, she still swallowed it all. Not just tasting me but drinking all I has to offer. Finally I let go of her head and she moved back. A thin vine of semen was still connecting me and the roof of my sisters mouth. Without hesitation she angled her head and stuck out her tong caching all of it. "I guess that takes care of breakfast for me." She smiled and licked her lips. I could tell their was still allot more to come and I smiled back in delight. *End of part 1* Sister Knows Best Ch. 02 Since you guys all wanted a better character background I'll go back to the beginning. Before Alicia gave me a blowjob and before I was even 18 years old and explain to you how I got as lucky to have an attractive 31 year old virgin to want to fuck her little brother. A couple of years before this event I just heard of Alicia's boyfriend. He lived in the same city as her and I had found out that he had stayed over a few times. At this age I was already horny for her and I got curious enough to wonder if she was fucking this guy already, so I asked her if I could stay over at her flat for a weekend. I'd done it once before and met one of her friends from work, Charlotte who was living with my sister at the time. Anyway, she said yes. Charlotte had moved to the flat next door so there was just going to be me and my big sister that weekend. I spent the night staying up with Alicia in the living room just talking about casual topics like friends etc. until it had gotten pretty late. Then I managed to slip her boyfriend into the discussion as we'd started taking about what she'd want from marriage. "Hey Alicia," I continued nervously. "What?" She was looking at me intently as the tone in my voice had clearly changed. "Well- in marriage - would you stay a virgin until then or not? Because now you have a boyfriend so..." "Oh, you mean to ask me if I'm still a virgin." She just figured it out as she said it and that just made her sound even cuter when she got embarrassed. "Let me show you something." "Okay" I got excited as I replied. She smiled at that, also still blushing from beginning to talk to me about her sex life. Then she grabbed my hand to follow her. We got into her bedroom and she walked over to her wardrobe letting go of my hand, so she could reach out. Then she pulled out a plastic see-through box. She reached out her hand to me as I marvelled at what was inside. Alicia said "This is my dildo." I wanted to say something but I didn't know what. She was so fuckable right then at that moment. I looked from the dildo to her just for a split second and tilted my head doing so, thinking of her sexy body and what we could do. She realised before I could do anything and interrupted my wave of thoughts preventing any contact from her body. "You can't. You're just 16- stop looking at me like that!" My mouth was now watering but I managed to slur out "sorry sis, but you did just hand me your dildo." "I was just showing you that I'm a virgin, okay? I don't wanna have sex until I'm married like a real lady. Besides-" she carried on "By then it will feel so much better!" "I was a little disappointed" I admitted. Still half-hoping that I could use the dildo on her now that I'd seen it." So you're not going to ever feel a man inside you until you're married? What if your husband's not a virgin?" I was confronting her openly now that I felt the period of embarrassment had left. "Well I can still do some things and not lose my virginity." She sat down on the bed as she said this and I just followed her on, not really thinking about it. "I can give head." I looked at her all of a sudden and I think from it she took me to say- 'you don't believe in sex before marriage but you'll give head?!' "Well," She continued "It does get boring. I have had anal sex." Her face changed, not as though she was ashamed but just to show her recalling what it felt like. Smiling now she said "And when Charlotte used to live here I shared someone with her. I only took it up the ass and he had a condom on too." I think she had lost track of what she was saying because she basically just told me she took it up the ass with her Hot friend Charlotte in a threesome. I wasn't about to complain though! She continued, still remembering with her head slightly tilted "So I never got any cum in me. Charlotte says that when she feels a guys cum shooting up her, it's the best bit." "-So, you can give head then." I interrupted and raised after raising an eyebrow cheekily. "I'm just saying that I Can, if I want to." "Oh." My eyebrow went back down. At this point, she noticed that she had been looking in the direction of my boner for quite some time and stopped talking altogether. After a short pause: "Look, we're not going to do anything with the dildo so just put it down." I felt as though she had read my mind. "I think it's time for you to go to bed now, okay" she finished talking and I put the box with her dildo on her bed as I got up to leave. "Okay sis. Sorry for.." I didn't know how to put it all but she smiled to show she knew what I meant. After that night I started coming over more often to get close to Alicia and overhear her enjoying her dildo. Also, over the next two years Charlotte moved back in and her and my sister had gotten to become 'best friends', but I'll save the rest of the story for another time.