There are many times in your life where you will be faced with decisions that bare significant concequence. Some are more important than others, obviously, but each of them will have a great impact on the direction of your life. As I pulled out and came all over her belly, I wondered if I'd made the right decision. She wrapped her legs around me, grabbed the back of my neck, pulled me downwards and kissed me passionately... Obviously she had no quams about the situation. But perhaps I've gone too far. Maybe I should go back just a bit and explain to you the circumstances of the situation I found myself in... When I was 17, I was an average kid. I lived at home with my parents, I had two dogs, and I had two older siblings (a sister, and a brother). I was just starting grade 12, and I had no girlfriend. I'd had a few girlfriends and I'd even gone all the way with one of them. But for a couple of summers now, I'd been completely void of female contact. That year, my older sister was turning 18. Margret (or Maggie as we called her) was going to throw a big party. My parents agreed so long as there was no drinking or drugs. Parent's can be so naive sometimes... They agreed that they (my parents) would go out to Uncle Tom's place and bring me along with them. My brother was off at University already, so he wasn't a concern. Maggie invited all of her friends. I wished I could be there. I mean, all those hot chicks and no adult supervision? Every 17 year old's dream right? So I made up a plan... When the day of the party arrived, I told my parents I was just too sick to go to Uncle Tom's place. My sister was pretty upset with the decision, but I got to stay home... The agreement was that I'd have to stay in my room and watch TV... That, however, was far from what I wanted to do. I knew for a solid fact that some of my sisters friends were sexually active. I'd gone to a few of my own parties and sometimes I'd seen some of them there. What I had noticed at those parties was that this one girl (Megan) always ended up in the bedroom with some guy. Megan was super hot, and Megan was coming to this party. Now, since my bedroom was obviously in use, and my parent's bedroom would be off limits, that left only Maggie's bedroom for any kind of "action" to occur. Maggie's bedroom had one of those closets where you could see through these slats in the doors. My plan was to hide in there and hopefully catch Megan in the act. I wasn't going to spring out at her or anything, I just wanted to watch. It was a solid three hours since the party had started when I made my way to Maggie's closet. I waited a long, long time in there. I started thinking what a stupid idea this was. I'd hidden in the closet on the one day that Megan wasn't getting lucky. In fact, two hours after having gotten into the closet, I was ready to call it quits. And indeed, so did everybody else. I could hear the party dying down and people leaving, so I decided to get out of the closet and go back to my room. That's when it happened. Just before I could get out of the closet, Megan came into the room. She sat down on the bed and looked through the doorway. I wondered which lucky guy she got this time. Megan was wearing a tight button-up shirt and a schoolgirl-type skirt. She also had on these black leather knee high boots. She was unbelievable sexy. Megan began to slowly unbutton her shirt. She then put one hand inside and played with her breasts. I didn't have an angle on them, but I'm sure whoever was at the door had a glorious view. Megan tilted her head back and flipped her blond hair around. She tore off her shirt revealing her tits for all to see. She played with her nipples and pouted her bottom lip. She extended her hand and motioned with her finger for the mystery man to come in as she laid back onto the bed. That was when Maggie came in. I almost yelped when I saw her, but fortunately I stifled it. I didn't know what to do. Here I was, stuck in my sister's closet as she was about to make love to another woman right in front of me! But like a train wreck, I couldn't look away... Maggie came in and knelt in front of Megan. She spread Megan's legs and moved in closer. She started with a passionate kiss. I could hear the smacks of their lips and I could see the battle that insued between each lover's tongue. Still in full lip-lock, Megan removed Maggie's shirt, revealing a black lacey bra. I'd never seen my sister naked, but the raging hard-on I seemed to be getting told me I really wanted to. Megan broke the kiss and threw her head back. Maggie moved down and started to kiss Megan's breasts. She expertly ran her tongue along Megan's nipples, massaging her breasts with her hands. Megan moaned softly, and she reached down to play with Maggie's breasts too. Maggie sat back and undid her bra, taking it off and throwing to the side. I saw my sister topless for the first time in my life. She had perhaps the most beautiful body I'd ever laid eyes on. I noticed myself reaching for my cock. I slowly unzipped my jeans - careful not to make a sound - and began to stroke myself as I watched my sister fuck another girl. Maggie lifted Megan's skirt. I could see that Megan had opted not only to go sans-bra, but also sans-panties. I could also see the glimmer on Megan's pussy showing just how wet she was. Maggie dove downwards and began to eat out Megan's pussy with a ferocious appetite. Megan closed her eyes and fell back onto the bed, moaning loudly. She grabbed her breasts and turned her head side to side. Maggie moaned as though she were eating the best steak ever made. Megan began to moan louder as Maggie continued to lick her pussy. In response, Maggie began to run her left hand over Megan's body and caress her breasts. Her right hand rose up to Megan's sex and began to slowly insert a couple of fingers. Maggie gently slid the fingers in and out of Megan's pussy while she licked her little clitty. This, as it turned out was too much for Megan. She screamed out an orgasm, shaking the bed as she did so. She grabbed Maggie's head and pressed it harder into her pussy. She writhed and wriggled on the bed in pleasure. Unfortunately, as it turned out, this was also too much for me. I didn't cum, but that was only because as I shifted my weight, I hit some of the hangers in Maggies closet and made a noise. Both girls shot up and looked at the closet. I was in deep shit. Maggie flew towards the door and flung it open. And there we were... My sister, topless and still with pussy juices on her chin, and me, standing in my sister's closet with my swollen dick in my hands. "What the fuck are you doing in here?" she yelled. The statement was amplified, but not quite angry. I look back on it now, and I'm almost positive there was a sense of joy in her voice. Almost like being watched made what just happened even better. "I-- I--" I stammered. I had no idea how to answer this. Instead I ran to my room. Obviously that wasn't the most manly thing to do, but what would you have done if you were found in your sister's closet with your dick in your hand? I was completely and totally embarrased. I didn't know what to do. I contemplated how difficult it would be to avoid my sister for the rest of my life. I figured it wouldn't be hard since she was probably going to do the same thing. The good news is, she wouldn't tell my parents because then she'd have to say what she was doing. After a while, I got undressed for bed and lay there staring at the ceiling. I couldn't stop thinking about the events that had transpired. Even though I'd been tramatized by being caught, the images of my sister eating out another girl wouldn't get out of my head. Hence, I suppose, the trama... I closed my eyes and replayed the events. That was when I heard a knock at the door. That was also when I realized I had another hard-on. I threw the blankets over myself and answered, "Yes?" My sister and Megan both came into the room. Megan giggled and my sister hit her. They were both dressed now, but that didn't seem to stop some extra blood from flowing to my ever-swelling member. Maggie looked at me and said, "Marcus, I know what you saw and I wanted to talk to you about it." Megan giggled again. "You see, I'm not a lesbian. I want you to know that." I had no idea where this was going. Why the hell was she telling me this? Why did she think that I cared? Was she afraid that I'd tell our parents? How would I explain THAT one? "Oh yes, uhm, Mom? Dad? Yeah, I was in Maggie's closet and I saw her eating out another girl." Somehow I don't think that would go over too well. Despite that, Maggie continued, "Anyways, Megan and I were thinking and we thought we'd prove to you that we're not lesbians." This wasn't making any sense. How would you "prove" something like that? That's when it happened... Megan giggle again, then she sprung into action. She leaped forward and threw off the blankets. Since I was naked, my swollen cock was there for both of them to see. I am surprised it stayed hard considering how much blood rushed to my face. I moved to recover myself, but before I could, Megan reached out and grabbed my dick and began to stroke it. While all this was going on, I couldn't take my eyes off my sister. She stared straight into my eyes as she began to unbutton her shirt and move to the other side of me, opposite from Megan. She removed her shirt, revealing her breasts to me. This was the second time I'd seen them, but for some reason they were more beautiful this time. She took her eyes off me and looked towards my cock. She reached down and took it from Megan. She began to stroke and caress it herself. One hand rubbed my dick, while the other massaged my balls. At this moment, Megan moved in and began to kiss me. She made me take my eyes off my sister, giggled, and she told me how cute I was. I closed my eyes and we kissed. I felt her tongue rolling around inside my mouth and her fingers running along the sides of my face. Suddenly I felt a warm wetness on my cock. Since I'd been with other girls, I knew what it was and was momentarily shocked. My sister was giving my a blowjob. I opened my eyes and broke the kiss. I looked down and saw Maggie bobbing her head up and down on my cock. It was unbelievable! But wait! What was I doing? This was my sister! I had to make a decision... Do I enjoy this for what it is (sex), or do I to the socially acceptable thing and have my sister get off me? My decision was made for me when Megan worked her way down my body with her tongue. She met my sister at my cock and began to help her suck on it. Both girls ran their tongues up and down my shaft, occasionally their tongues would meet at the top and touch each other. Whenever this happened, they kissed sensually. After a few minutes of this, my sister got up and undressed completely. Megan followed suite. Both girls crawled up onto the bed. My sister told me to get up and off the bed. I did so while Megan laid herself flat on the bed. She had her head on one side, and her legs hanging off the other. She spread her legs for me and both girls urged me to fuck her. In fact, I would say that Megan was almost begging for it. I moved in and slowly inserted my cock into Megan's pussy. She rolled her eyes back and moaned as I did so. I began to slide my cock in and out of her and she moaned each time. My sister, meanwhile climbed up over top of Megan and lowered her soaking pussy onto Megan's face. Megan sucked and licked vigorously while I continued to fuck her. Both girls moaned and grunted with pleasure. My sister leaned forward and played with Megan's breasts as Megan's tongue ran in and out of her throbbing pussy. Megan's pussy, meanwhile, was so wet and warm that I was having trouble trying not to cum. What made this more sensual though, was that while all this was going on, Maggie never took her eyes from mine. We stared into each other's eyes like perfect lovers. Just then, Megan came. Her orgasm was massive! She nearly flipped my sister off the bed as she screamed and shuddered. She grabbed on to Maggie's hips and shook violently on the bed. It was all I could do to keep from cumming right there. As the orgasm subsided, my sister rolled off of Megan and laid down on the bed. I removed my cock from Megan and she adjusted herself to lay beside my sister. Maggie motioned to me to get on top of her. Without hesitation I did... I slid my dick inside her and this time, SHE moaned with pleasure. Maggie looked towards Megan and they began to kiss each other while I fucked her. Megan caressed my sister's breasts as they jiggled from my motions. Maggie turned away from Megan and stared into my eyes. She reached up and touched my chest. I was burning hot. "Harder!" she yelled. I complied as Megan began to lick my sister's left breast. "Harder!" she yelled again. I began pounding in and out of my sister's pussy. "Yes! Yes!!! YES!!!" she screamed with passion. I could feel myself beginning to cum. Megan was feverishly sucking on Maggie's tits. She reached down and began to rub my sister's clitty as I pounded into it with all the force I could muster! "YES!!!" she screamed, "OH MY GOD!!!" then she had the most explosive orgasm I have ever seen to this day. She screamed and shook, shaking her head from side to side, all the while yelling, "don't stop! Don't stop!" At this point I couldn't take it anymore, I quickly pulled my cock from my sisters pussy and came all over her belly. I moaned with great satisfaction. I can safely say that was the best sexual experience I'd ever had. Megan helped stroke the rest of the cum out of my dick. When I was done, Maggie wrapped her legs around me, grabbed the back of my neck, and pulled me down on top of her, kissing me passionately. The action of putting out bodies together rubbed the cum all over our torsos. As we seperated and each lay on our backs, Megan climbed on top of us and licked us clean while my sister and I continued to kiss a lover's kiss. And while Megan cleaned us up, I wondered if I'd made the right decision. My sister obviously had no quams about the situation. So did I do the right thing? Hell yeah!