Don't worry, this isn't a minor story......My Mom remarried when I was 15, just around the time I really started getting into playing with myself and experimenting with what feels good. My new Dad, Mark, was very attractive for an older guy. He was 40 when I was 15, and I had always had a fantasy that he would come into my room while I was sleeping and wake me up by rubbing his hard cock against my ass. Sadly, it never happened and I was left to my fantasies. My fantasies were so nasty, I found a website that introduced me to golden showers. I had a routine where I would drink a ton of water and then wait til it was real late or til no one was home and Id go into the bathroom and straddle a towel and play with my clit and slowly let out piss whenever i felt the urge. Id think about pissing on my step dads dick and in his mouth, like I saw in the videos online. it looked so hot! My Mom travels for work and the last time she went out of town it was unavoidable, but she had to be gone for my 18th birthday. She left on a Thursday and I had school the next day and Mark had to work. "good night Kara, see you in the morning" "Goodnight Mark." We went to bed in our rooms and around 1am, I woke up so horny, and full of piss.....I had the best idea! I took off my pants so I was just wearing my lacey panties and a thin tank top that showed my hard nipples. I tip toed into his room and called his name, he didn't hear me so I said it again, "Mark, Im scared, can I sleep with you?" He was quiet for a minute before he said, "ok sweetie, there's no reason to be scared. come lay down, its late and we both have to be up early" I climbed into bed and he rolled over with his back to me and said good night. I made a pouty sound and whispered, "Mark, Im still scared from a bad dream I had, can you just cuddle me til I fall asleep?" "Kara, thats not really appropriate, Im practically your dad, and you're all grown up now" "Please???" I pouted, "just til im asleep, I promise I wont tell" He hesitated then he rolled over and put his arms around my waist, "ok, but don't tell your mom, she wouldn't understand this" "ok daddy, oops, I ,mean, Mark" "Kara! your half naked! Cant you put some clothes on?" As he said that he pressed his hips forward, shoving his now hard cock against my ass. "But i'm hot! And you're not wearing pants either, just boxers. Don't you like my PJs?" At this point he was fighting to remain a father figure and not rip my clothes off, I felt his hands exploring the material of my shirt that covered my perky breasts, "yes honey, I love your PJs, now lets just try to get some sleep and not get into any trouble,Ok? "ok, Mark" We closed our eyes and I felt the pressure of my piss building up. I reached down to hold my crotch to make the feeling of having to piss go away. It worked for a few minutes, but suddenly I felt such a strong urge to piss I couldn't help it, I pissed through my panties and a little bit got on the bed before I could stop it!! "oh no!" I whispered. "what's wrong?" he asked. "I had an accident,,,,I think i'm about to have another accident too" "what are you talking about? an accident, did to pee or something?" "yes! Oh god, I cant hold it, im pissing the bed Daddy!" I let go a long stream of piss all over his bed, it felt so good to finally get to have my pissing fantasies come true!! Now I just had to hope Mark wouldn't get mad! I slowed my stream so I could save some of it, as it was slowing down I felt his hand slip between my legs to feel my wet crotch, he moaned in my ear as he rubbed my piss soaked panties and moved his cock up and down my ass, "oh baby, Kara, this is bad, you pissed the bed! you couldn't make it to the toilet baby?" Clearly at this point he had decided fuck it, im not her real dad! "no daddy, I couldn't help it, but it felt so good to piss in the bed, have you ever done that Daddy?" "No baby, but I have dreamt about using you for my toilet.....is that bad? Do you want me to stop?" "no daddy, dont stop, do you have to piss now? I still have to piss bad,,,,,,," he pulled my panties off and his boxers too, and picked me up so I was stradling his huge dick. My bare wet pussy was resting on his naked cock, I was slowly sliding back and forth on it as he closed his eyes and breathed hard, "oh god yeah," he whispered under his breath. "i want you to finish pissing on my cock baby,just let it go as you rub your clit on daddy's cock ok?" I closed my eyes and nodded yes as I tried to relax my bladder enough to let it go...a few seconds and I said, "ok, here it comes, i'm pissing daddy!" I pissed long and hard all over his dick and down around his balls, it felt so good, so warm, I was about to cum. as I was still pissing he took his dick and thrusted it into my pussy! I leaned forward so my clit was pressed against his pubic bone and kept pissing and grinding on him as he fucked me. it didn't take long for me to climax and cum hard all over his cock, My whole body shook with pleasure! Me cuming made it impossible for him to keep going, he grabbed my ass and rammed his dick in me hard and fast til he exploded deep inside my pussy!! We layed there for a minute before he said, "I gotta piss bad, open your mouth." I opened my mouth and he knelt by my chest and held his dick, he aimed it at my chest and started pissing hard on me, using me for his toilet! Then he moved his stream of piss up to my face and mouth and finished in my mouth with my lips wrapped around his pissing dick. Some I swallowed, some spilled out. What an amazing night!! I cant wait to do it again!