I grew up to be the spitting image of my mom, or so many people told me. In fact, by the time I turned seventeen, I was sometimes mistaken for Mom about town, and it happened more often than I thought possible. Sometimes, that thought got me thinking: what if Dad mistook me for Mom... and fucked me by mistake? Dad was a good-looking guy, slim and athletic, and thinking about what it would be like became my recurring fantasy. It went something like this...
~~~~~
Mom and Dad were both away for the weekend; Mom to see her sick sister, and Dad to a golf retreat. With the house to myself, I took advantage of the opportunity to sleep in my parents' bed; it was a king-size mattress, roomy, and more comfortable than the twin-size mattress I had.
So at bedtime, I retired to their bedroom with my laptop and found some suitable porn to watch. I was constantly horny, it seemed, without a boyfriend yet, so I always went to bed craving some sexual relief. I re-enacted scenes from porn I'd watch, and masturbated in bed. I kept a dildo and a vibrator in my nightstand drawer, so I took them with me to my folks' bedroom and planned to use them as needed to get some much-needed relief. It was nice that they were away; I'd die of embarrassment if they ever caught me playing with myself!
I settled in and happily watched porn and got very wet, massaging my pussy as I saw a couple fool around in a video, using my hands to do what the porn guy was doing to the girl. It was never totally satisfying, but it was enough to satisfy me. I was wet and about to use my vibrator to get off when I heard a noise in the house. Fear overcame me that there was an intruder, and a few moments later the bedroom door opened... it was Dad! Apparently, the bad weather we'd been having must have cancelled the golf retreat, and he came home early. He was feeling no pain after drinking with his golf buddies, and seeing me in his bed, he would have assumed I was Mom.
~~~~~
I could have told him right away that it was me and not Mom, but I didn't for some reason, and soon it was too late. It may have been wrong, but having some real sexual satisfaction, even if it came from my own father, seemed preferable to having to masturbate every night. So I quickly hid the laptop and vibrator under the pillow and pretended to be asleep as he moved toward the bed. He took his clothes off and left them on the floor, then climbed into his bed, naked. Lying there "sleeping" with my face turned away from him, I'm sure I looked just like Mom, and he thought she must have come home early, too.
He slid over toward me and placed a hand on my rear as I "slept" on my tummy. It was like an electric shock that aroused me immediately, and I got wetter as I awaited his next move. He used his hands to spread my legs enough to completely expose my pussy. I was naked since I was about to masturbate, so he had no trouble putting his fingers on my twat and sliding them up and down my slit. I loved the feel of his fingers on me, and simply moaned in acknowledgement of how good it felt.
Dad proceeded to excite me, and I squirmed at his touch as I lay on my stomach with my legs open while he played with my pussy. My moaning encouraged him as he started to play with my clit, swirling it and driving me wild. I quickly reached my "I don't care" level, and was open to anything he did to me. No longer pretending to be asleep, I turned to him and smiled. When he saw it was me, he paused, but he wanted me by then and resumed playing with me. I guess he'd hit his "I don't care" level too. I knew that he'd had a vasectomy, so I couldn't get pregnant, and I was on fire with craving. We had only our guilt to deal with, and we were both already well past worrying about that.
~~~~~
Dad was now probing my vagina with his fingers. In and out, first one, and then two of his fingers entered me. He was finger-fucking me, and I loved it! He pushed as deep as he could go, and with his free hand he caressed my thighs and rear. He squeezed and pinched my buttocks, and soon I was moaning even louder, my juices lubricating the fingers he had in me.

Then he put his free hand under my hips and pushed upward; I figured he wanted me to lift my hips so my legs were supporting my raised rear, doggie-style, while my head remained on my pillow, with my elbows on the bed supporting my upper body. I lifted as he wanted, and he reached under me and found my breasts, and he played with my erect nipples. It felt so good; I felt shivers of arousal run through my entire body.
With his finger-fucking continuing, and his nipple play arousing me at the same time, I was now leaking my pussy juices and wetting his hand even more as I squirmed and moaned relentlessly. Then he pulled his fingers from my vagina and moved them to my clit, where he swirled and rubbed me to a fine ecstasy as I wiggled and squirmed. My sighing and moaning became louder, and he whispered for me to be quiet. I thought it odd, but I figured he must say that to Mom if she got loud, so I wouldn't hear them from my room... how ironic that was now!
Soon, I could not control my body's reactions, and I came intensely. I covered my mouth with one hand to muffle my near-screams as my legs and elbows held my rear and pussy up. My juices flowed and ran down my thigh and leg; they tickled me, but I didn't care. Then Dad knelt behind me and slapped up at my pussy with this erect dick, and each time he hit my clit, I jerked and moaned more loudly. Soon he pressed his cock head against my opening, and then pushed into me.
Dad started slowly, pushing in and pulling almost out, pausing, and then pushing in again. It felt heavenly! He kept it up, and as I felt his cock deep in me, I found it much more satisfying than my dildo; warm, filling, and erotic. Having just cum, I was primed to cum again, and with his dick repeatedly driving deep into my vagina, I soon jerked, spasmed, and had another wonderful orgasm.
As Dad thrust in and out more strongly, he began to groan and sped up. He pushed so deep, and it felt so good, that my orgasms melded into another, and he just kept fucking me. Before long, he paused and then pushed as hard as ever, groaned loudly, and came, spurting his spunk into me. It was warm and luscious, and triggered me to yet another orgasm.
~~~~~
The entire experience was heavenly, so much better than masturbating. Having shot his wad, Dad pulled out and collapsed on the bed next to me. He quickly fell asleep, leaving me in my bliss, but suddenly I had a terrible realization: there was no way I could continue to pretend to be Mom in the morning when he awoke!
So, I came up with a plan. I would go to my room with my tablet and my sex toys, leaving no trace that I'd ever been in his room, and I'd sleep in my bed. When we got up in the morning, I would deny I was ever in their room if he asked, and, in Mom's absence, he would have to assume he dreamed the entire episode!
I was up first, and was having breakfast when Dad came to the kitchen. He saw me and looked very confused. I could tell he was thinking about last night, and seeing me and not Mom, he quickly realized he either dreamed everything that happened, or he had fucked his own daughter by mistake.
Rather quickly, he looked like a burden had been lifted from his mind when it was obvious he had chosen to believe it was all just a very erotic dream. Only I knew the very erotic truth!
~~~~~
And so ended my fantasy, as I masturbated and drove myself to an explosive orgasm, fueled by my recurring desire to have my dad fuck me by mistake! Too bad that could never happen... or could it?
