Okay so where to begin... A year ago my mom started dating this guy a lot younger than her, like only 8 years older than me. Really hot, amazing abs (I saw them when he helped us move, first time I ever met him I was wet just looking at him). Just a couple months ago they got married. I am 19, going to college in California, and when I come home for a visit he's always around, usually without a shirt on since it's so hot. We go to the beach a lot, and we recently vacationed in Hawaii, so I get an eyeful every time I see him. I'm 5'3", 115 pounds, and a 30C, so I know i have a nice body even if I still think I'm a little too fat. Anyway, I like to go to raves and often I'll come home very drunk and high, and my mom finally got fed up and asked him to escort me next time, I said that was cool and he agreed after some coaxing (he hates most music besides rock). So we went to a rave in LA, with my cousin, who's about as tall as me with bigger boobs (she's chubbier), and had a great time. I danced and grinded on him constantly, and I definitely got to confirm what I had already seen (and heard about from my mom's phone conversations with her friends) he has a huuuuuuge cock. Like it has to be at least 10 inches, and FAT. After a dance he even pulled me to him and said i have to stay there until his hardon goes away (we were all high on X), which was fine with me, i had to try really hard to stop grinding my ass up and down on his huge cock. This went on until we were separated, and I went looking for my cousin (really I wanted to dance more with my step-dad), and I was so jealous as I walked into a back room and saw my cousin on her knees with my step dad's huge cock down her throat, he had her tits out and was fucking them while she sucked his dick. I was already wet, but the site of them just made me cream. I left and let them finish, then asked her what happened, and she told me "I swallowed a huge load of your step-daddy's cum" and I told her I wanted some too. After the rave ended we decided to stay the night in a motel, and we all slept in the same bed. My cousin and I decided it would be fun to tease him, and only wore our tiny little g-string panties to bed. It wasn't long before i heard my cousin groan as he shoved his big fat dick in her. I got to watch him pound her for about 15 minutes while he went back and forth from kissing her and me. He asked me if I wanted to fuck too and I said yes. It was the most amazing sex of my life. My mom would kill us if she found out, but he fucks us every time we visit, and we go to raves with him every chance we get. He fucked my tiny little butthole that first night, and came deep in me, and I wouldn't have it any other way.