Deepest Darkest Fantasy

[Kripto]

For our two year anniversary, my wife Lilly wanted to do something really spicy in the bedroom. She talked me into going to this potion shop run by this snaggle toothed witch who cackles every time you ask her a question. I’m not sure what my wife was looking for, something to help my stamina or her sensitivity or something. She stopped when she came across a shelf laden with bottles all labeled, ‘Deepest Darkest Fantasy.’ She grabbed two and took them to the witch. “What do these do?” my wife asked. The witch cackled and said, “They’re for young couples such as yourself who want to learn what hidden fantasies your partner has.” Lilly looked eagerly at me, then said to the witch, “We’ll take two!” The witch cackled again, this time at a much higher register, then said, “Of course!” Quick as a flash the witch popped the cork from the first bottle, plucked a hair from my head, and dropped it in. She stoppered it and shook it. She proceeded to do the same to my wife. “There,” she said with a cackle of finality. She then gave me the bottle with my wife’s hair, and my wife the bottle that had mine. “Drink that, and you’ll become your lover’s most secret hidden fantasy. Then follow the instructions on the back of the label. Have fun!” With that she took my money and went off to help someone else. Lilly was very excited to get back home, but I was a little concerned about what the witch meant by most secret hidden fantasy. I mean, we all got our fantasies, but like, some are much more…kinkier than others. I hoped it meant that she would just get bigger boobs and maybe I’d have a bigger dick or something. Whatever it was, there was no talking Lilly out of drinking them the second we got home. She dragged me into the living room and made us both get naked. Then we both sat on the couch, and my wife dumped out the bottles from her purse into her hand. The two bottles that looked exactly alike. “Which one is which?” I asked nervously. Lilly also looked at them with some concern, until she said, “This one is yours. It had a little more in it than mine…I think.” I gaped at her. “You think?!” She just put a finger to my lips to shush me and said, “This is gonna be so hot! I can’t wait to be your secret desire, Mark.” And then she downed her bottle. She smirked at me and grasped her B cup boobs. “Let me guess. I’m about to grow three bust sizes or something and you’ll want to cum on my big tits?” Gosh I hope that was all that happened. She bit her lower lip and looked me up and down. “Hurry and drink yours, baby. I’m already so turned on.” I hesitated, and then followed my wife’s lead. For two minutes we just sat there, and nothing happened. And then my wife noted, “I don’t feel my boobs growing, but…I do feel a tingling in my crotch. Wait! What the hell?!” We both looked down to see a…a freaking dick pushing out from her pussy. It grew and grew and grew till the thing was like, eight long hard inches. And then two balls popped out, before her pussy disappeared entirely. Hair began appearing up and down her legs, going all the way up her chest, which suddenly deflated. She now had two pecs, and then facial hair, and suddenly, I was staring at a man. “Lilly…” I said, very confused. “Why did you just turn into a guy?” Her eyes grew big and her expression became panicky. She grabbed her phone and looked at herself in the front facing camera. “No, no, no, no!” she cried in her now very masculine sounding voice. “This is…oh shit, Mark, please, this guy means nothing to me, he’s just a delivery guy that comes into our office and the other women there think he’s cute and I guess…” I know I should be jealous, but this was just too funny. “You were going to turn me into this secret crush of yours but instead YOU drank your own potion. This is hilarious!” My wife scowled at me, which didn’t look near as cute with her manly face. “It is not! And he’s not my crush! I just…you know, sometimes you think someone is cute and you look and…" She began squirming as she looked at her rigid cock. “Mark, this thing is so hard. How do I…get it to go down?” She was looking at me in a way that made me uncomfortable, like she wanted ME to do something about that monster between her legs. Before I could let her know my thoughts on that matter, she suddenly yelped and exclaimed, “Hey! Something’s happening to YOU!” I became aware of it as soon as she said it. There was an acute tingling on my chest, like my skin was stretching and expanding, and when I looked down, it looked like two big balloons were forming there. My wife pointed with a knowing smile. “I KNEW you wanted me to have bigger…” She stopped though, becoming suddenly quiet as she focused on the rest of the changes. I could feel lengthening hair that came down to my upper back. I felt like all of me was shrinking. My lips became fuller and I had a sense of becoming more…feminine. My heart pounded in my chest as my wife pursed her lips, then yelled, “Why do you look exactly like my mother?!” Well fuck I held up my palms and said, “Hey! I didn’t know-” But my wife was still going. “You look just like the picture of her that’s on her mantle, the one when she was ten years younger. MARK! You secretly want to have sex with my mother?! I can’t believe you! You’re disgusting. You’re….AAAAHH…” she suddenly moaned as she licked her lips. “Mark,” she gasped as she gripped her cock in what might have been either pleasure or pain. “I’m so horny, and for some reason seeing you like this is only making it worse! We need to switch back! I don’t want to be reacting to the sight of my mom’s body this way!” I grabbed one of the bottles, and peeled off the label. On the other side was a set of instructions like the witch had promised. They read, “To change back, fulfill your partner’s desire. Don’t worry, the magic will help you know what that is.” We both went pale. My wife began to absently stroke herself. It was clear she was getting desperate. I felt sorry for her and said gently, “There, there.” She looked at me like I’d just grown a third head. “There there?” she repeated. “Yeah, I don’t know why I said that," I lied. "Just, uh, other than changing into this delivery guy with a huge cock, what was the rest of your desire?” My wife put hand to her face, blocking her eyes from me, then whispered, “I think…I think maybe…I secretly wanted you to fuck me with his big dick…with no protection, and…you shoot a giant load in me.” My jaw dropped in surprise at her fantasy. “Are you fucking serious?! I’m not gonna let you fuck me with that thing!” My wife looked at me pitifully and said, “Well…can you do something else! This thing is so hard! I need you to help me. Please Mark!” I sighed and said, “Well…I guess…maybe I can…show you how to jerk it properly.” I couldn’t believe what I did next. I took my hand, and wrapped it around my wife’s shaft. My new feminine hand looked so much smaller wrapped around this thing. “Okay, baby. Sh sh sh. It’s okay. Mommy’s here. We can get through this. I’m gonna make you feel sooo much better.” Lilly grunted as I began to pump her dick, but asked irritably, “Why are you talking like that?!” I let out a breath and tried to keep a tight grasp on her cock. “Um…that might have to do with my darkest fantasy. It wasn’t just you turning into your mom, it was that…you’d also BE motherly to me. You know, like the way she dotes on me when we go over to her house.” My wife’s fists clenched. “You fucking pig! I’m gonna-” But I felt the words bubble out of me as I shushed her again. “If you want me to keep stroking you, young man, you will watch your language.” As soon as I stopped talking, I clamped my own hand over my pouty lips. Despite what I said my wife moaned and said, “Okay. Okay. Whatever you want. Just please, keep doing what you’re doing.” We sat there in relative silence as I kept jerking off her dick. It was standing straight up. The thing looked huge from where I was sitting. I could feel my chest wobbling as I picked up the pace. I wanted to check out the big tits I knew that were bouncing up and down as I jerked this cock, but it just seemed so important to help this young man, er, my wife, to feel better by getting him off. Suddenly Lilly tensed. “Wait…wait something’s not right. Something down there…it feels too intense. I think you should stop.” I shook my head and said, “That means you’re close, baby. You’re almost there. Why don’t you look at my big tits, baby. And then cum for me. Go ahead. Cum for mommy.” I heard my wife groan, then lean her head back in ecstasy.

All of a sudden a torrent of jizz geysered out of that impressive virile cock. Once. Twice. Three times it shot out! “Whoa!” I exclaimed in shock at how much there’d been. My wife had really wanted to feel that pumped into her?! My voice was still sweet and syrupy as I said, “Feel better, baby?” My wife laid back, panting. She finally said, “A little, but…I’m still hard. Like, I feel I could go again. But…why? Why am I still this guy?” I looked down at myself. I was a damn fine woman. This young man was lucky to be with someone like me. I licked my lips and said, “Um…Lilly…I think we have to fulfill the the fantasy completely before we can change back. So…I mean…I’m not saying I want to, but…the magic is kinda making me want to lead you to the bedroom, so you can put your next big load…in Momma’s pussy.”