Great Mom Pt.7

It was getting close the weekend; I had taken the day off just to get a break. My children went out for the day so I was home alone. I spent sometime in the pool then I decided to lay out for awhile. “Hey Katie, are you back there?” At first I did not recognize the voice, I called back that I was. My brother came through the gate around the side of my house to the backyard where I was laying out by the pool. My brother is 6’2″ and is built. We make an odd brother and sister combo when standing next to each other, I am about 5’1″, petite body. My brother had stopped by, unexpectedly, his girlfriend and him were supposed to have gone out for lunch but she had to postpone it for a couple of hours. We talked for awhile, I was laying on a beach towel, my brother kept standing there, I told him to sit down several times but he kept saying he was fine. We both had sunglasses on and soon I noticed my brother must be checking me out and enjoying what he saw. I noticed a sizeable bulge in his shorts and his hand was in his pocket. My brother was doing his best to subtly adjust his cock so I could not see. So I decided to have a little fun with my brother, to get him more excited. I would sit up, stretch so I would thrust my large tits out, and my nipples were clearly hard and very clearly showing through my bikini top. I sat up, spreading my legs so he could get a look at my barely covered pussy. It was working quite well, I could tell how my brother moved around he was trying desperately to get his hard cock pointing straight up along his stomach, in line with his zipper, so I could not really see it. My brother then excused himself to go use the bathroom. I gave my brother a few minutes then I quietly snuck into my house to find him. I had feeling he may be jacking off. I found him in the down stairs bathroom. I quietly crept up to the door, luckily it was an older home and the door did not fit closely to the floor. I very quietly laid down on the floor and put my ear to the bottom of the door, it was almost a half an inch space. I was right, I could hear my brother stroking his cock and he was thinking about me, his sister.

I have no idea for how long I just listened to my brother moaning and groaning. Every now and then he would moan out my name or just sister. Sometimes I would hear him say about me sucking his cock, my big tits or just how good of a fuck I am. Listening to my brother was really turning me on. Without even realizing it, I had slid one hand down my bikini bottom and I was already fingering my wet pussy. My other hand was instinctively playing with my tits. I knocked on the door, “Mark, are you ok? You have been in there for a while.” I still kept playing with my pussy. My brother yelled out, “Katie I am fine! I’ll be out in a bit!” “Sorry, I was just worried about you. I will be back outside by the pool.” Which was a lie, I was going to stay right there and get myself off while listening to my brother do the same. My brother was silent for a few minutes, which gave me time to keep playing with my clit. Then I heard my brother start back in with jacking himself off. He sounded more aggressive, I guess interrupted him close to getting off. “Damn Katie! I was about to fucking cum. Just like my sister, always talking when she should be quiet. I got a solution to that, my big fucking cock in her mouth. If only Katie wasn’t my sister, I would fuck her brains out!” He moaned and grunted a bit louder then I heard him say, “Fuck it! I would fuck my sister anyway, just once. She is so damn hot! Shit those tits are so big and her nipples! I would love to suck on them and fuck her big tits!” I wanted to open the door right then and there and fuck my brother but I was enjoying listening to him as I finger fucked myself. I was getting close to getting off, what sucked was I had to be quiet, I didn’t want my brother to know I was out there, maybe not yet. I figured Mark was close to cumming as well, just by listening to him and his grunting I could tell he was going to cum.

I had pulled my tits out of my top and I was pulling on my nipples as I drove my fingers deep into my pussy. I could not hold back anymore and several waves of lustful orgasms rocked my body. I grabbed one of tits, held it up to mouth and sucked on my nipple as I came. I did my best not make any noise of the incredible orgasm I was having, thanks to listening to my brother jacking off. I heard Mark start to moan, louder and louder. “Oh shit, oh fuck I’m gonna cum Katie. Yeah fuck I’m gonna cum sis, all over your tits, your face and in your fucking pussy! Oh fuck, fuck…fuck yes!” At that point I could only picture my brother cumming, his cock spurting out his load of cum, derived from his incestuous thoughts of me. It sounded like my brother had a huge load from what he was lustful groaning out; “Oh shit Katie…oh fuck you are making me cum! Shit sis, I’m still cumming! Oh fuck, yes! Fuck this is great!” It made me smile with a lustful, deep seeded feeling knowing I was giving my brother the best orgasm of his life. When I thought he was done, I quickly put my tits back into my top and quietly ran back outside to the pool to act like nothing had happened.

I got into the pool, I needed to make my bottom wet to hide the wet stain I had made from my orgasm. My brother came out a couple of minutes later, I asked him if he was ok and he said he yes, he was doing good. Mark flashed me a smile, which really turned me on because I knew what he was thinking but he had no idea I knew what he just did. I swam around for a bit as we talked about my kids, his relationship. I glanced at his shorts and I could see another bulge developing! He noticed it too as he tried once again to adjust himself so I could not see it. This was becoming a sexual torture to the both of us. The dark thoughts I had were nearly over flowing in me and by looking at my brother, I could see it was at the same level too. I got out of the pool; my nipples were nearly thrusting through my now wet, skintight bikini top. I saw my brother glance down at my tits, focusing on my nipples; I couldn’t take it anymore I had to do something. “What are you staring at Mark?” My brother turned red embarrassed that I caught him looking at my tits. “Nothing Katie…um nothing.” “Bullshit! You were checking me out! You were staring at my fucking tits! Weren’t you? Damn it, answer me Mark, you were, weren’t you!” “Yes Katie…I couldn’t help it…you are so attractive…I am so sorry.” I thought I would have some fun now with my brother. “You fucking perv! I am your sister! Oh shit, look at you Mark. You have a fucking hard on! You little incestuous pervert! I am your sister and you are getting hard-on looking at me!” My brother didn’t know what to say, I had busted him cold.

“Get the fuck out of here and into the house you fucking pervert!” My brother just stood there, totally in shock. “Go on Mark, get the fuck out of my sight!” I pointed to the door. “Get your fucking perverted ass downstairs. Do it now or I will call mom and tell her what a pervert, incestuous son you are!” I knew that since I caught my brother off guard, he would do what I said and not even realize I had just told him to go downstairs and not to leave my house. He went into the house just like I told him to, I quickly dried myself off and went in after him. Mark had done exactly what I said; he had gone downstairs. I came down the stairs and there was my brother standing by the pool table looking very nervous. “Katie…why did you want me to come down here?” “Shut the fuck up Mark! What the fuck is your problem, looking at my tits? Staring at my big nipples too? So, your sister has big tits and nipples. So fucking what! You are not supposed to get a fucking lustful hard-on over your own sister!” As I yelled at my brother I backed him up against the pool table. I could see that my brother no longer had a hard-on, which made me disappointed. I pushed my brother back on to the pool table, he sat down on it, and his legs were hanging over the edge. “Katie, stop. I am sorry. You are blowing this way out of proportion.” “Oh really Mark! I don’t fucking think I am. I heard you in the bathroom, jacking off and thinking about me! I’m your fucking sister and you were jacking off to me!” My brother turned almost white, he was completely speechless. Then he spoke up, “Oh god Katie…I…I don’t know what to say. Oh shit I am sorry, I am so embarrassed.” “You should be you fucking pervert.” I caught my brother looking at my tits again.

“Damn it Mark, there you go again, looking at my tits!” “I…I’m sorry…I…” “You wanna see my tits, fine look at my tits!” I took my top off, letting my tits bounce free, my nipples were very erect, hard and pointing right at my brother. Mark just stared right at them. I held my tits in my hands, pushing them up a bit. “There Mark, take a good fucking long look at your sisters tits! Do you wanna know how big my tits are? Do you?” My brother stammered out a yes, still in shock that I took my top off. I massaged my tits a bit more before I answered. “They are 36C, not too hard, not to soft, nicely round.