One Snowy Night

It was one snowy night and my friend and I had been out playing in the snow and had got quite cold. When it was time for us to come in to get ready for bed we ran to his room and stripped down to get our pajamas on. In doing that we both laughed because the cold air had caused major shrinkage , if you know what I mean. My friend said he knew a way to get rid of the shrinkage, and proceeded to rub his cock causing it to become erect. I din't even need to rub mine since just watching him turned me on. As we stood there naked and with raging hard-on I noticed that he was quite a bit bigger than my 6 1/2' cock. I asked him if he had ever measured himself and said he had measured it to be about 10' long. I almost fainted with envy. He asked if I had ever felt one that big and I told him of course not, did he think I was gay or something. He laughed and promptly came over and offered me his cock anyway. At first I hesitated then got curious and grabbed ahold and started rubbing it from top to bottom. We fell on the bed laughing and began jerking each other off. What a feeling, not only having the biggest cock i'd ever seen in my hand but having another guy pumping my cock. Just as we were about to come the door opened and there stood his older sister. She said, 'What the hell is going on in here?' 'Are you crazy, you can't leave me out of this.' She jumped in bed between us and began to pump both of us as we both explored her pussy and tits. Then it happened...we all came together. My friend and I shot the largest load of cum onto his sister's stomach and tit as she laid there quivering with her own orgasm. I thought we were done but his sister made us clean her up, not with a washcloth but our tonges with brought her to a nother orgasm. The taste of our cum was a turn on which led to another threesome party which lasted all night.