For as long as I can remember I've indulged in cross dressing. Last week though I was taken to the next level when I was caught by my aunties neighbour. It all started a couple of weeks ago when my auntie and uncle were going on holiday with my mum and dad. My auntie is extremely fit and always wears lovely sexy clothes. Many a time I've even had a wank thinking about her. Now being 18 I was asked if I'd be house sitter for a couple of weeks while they were away. I of course jumped at the chance as I knew I'd be able to try on all kinds of her clothes and prance around the house undisturbed. Being a similar size I could easily fit into anything I could find in the wardrobe and of course her lovely sexy undies, tights or stockings and even her lovely stiletto heels. For a couple of days this was my routine and loving every minute and wanking myself silly in the process imagining me being my auntie and being fucked by all kinds of men. On the third night it was dark and I thought I'd be brave. I was dressed in a lovely white matching bra and panties, tan hold up stockings, black skirt mid-thigh and a lovely white plain blouse, finished off with black patent heels. I'd even found a nice wig at the back of one of the wardrobes and padded the bra with some tights. To be honest I looked pretty good and quite convincing. I ventured down stairs and out the back door into the garden carefully viewing windows from the surrounding houses while walking down the garden, out of the back gate, down the alley way and around the corner after checking. My heart was pounding but it was such a thrill I had the biggest erection I'd ever had and could feel pre-cum wetting my panties. Heading back I was just about to walk through the gate when out of the darkness a hand grabbed my shoulder, I nearly shit myself as I was spun around to come face to face with my aunties neighbour Frank. What have we here then he said holding me so I couldn't escape through the gate. I just mumbled and stuttered something in return (can't remember what) but pleaded with him not to tell my auntie and uncle and also my parents. Sure he said, but we'll need to come to some kind of mutual arrangement. Obviously reluctantly I agreed but was secretly hoping what he had in mind was what I was also thinking. Holding my hand he walked my to his house and ushered me through the back door placing his hand on my bottom and giving it a quick squeeze which made me feel great, thinking this is how a girl must feel when she's about to be taken. We walked thought to his lounge where he spun me around took me in his arms and planted a massive kiss on me pushing his tongue into my mouth, I of course responded back, I never felt like this before, my hold body was tingling with excitement making me feel like a girl about to be used. Slowly he undid the buttons on my blouse putting his hands into my bra, tweaking, pulling and twisting my nipples which made me scream with pain even though it was sending shockwave down to my groin where I was nearly cumming on the spot. Do you like that then you fucking slut he asked. Yes I replied it makes me feel really girly having them played with like that. Good now get on your knees and suck me you fucking slut or I'll tell your parents and auntie what I caught you doing. He pushed me down and with my hands trembling I unzipped him and took out his cock. I'd never seen one like this before. It was 8 inches long and quite thick. Suck it he said, and for the very first time I did what I'd been longing to do for years. I licked the end before slowly taking it into my mouth, closing my eyes and sucking like a pro with moans of pleasure from him. Holding the back of my head he started to fuck my face, his cock hitting the back of my throat making me gag. Pulling away nearly being sick he said where do you think you're going slut, you're mine to do with as I please. I'm sorry I said but I thought I was going to be sick, I've never done this before. Oh right he said, a tranny virgin slut eh? Yes I replied but please let this be our secret, I'm begging you. Fine he said with that pushed my onto his sofa. Getting on top of me his hands went up my skirt feeling my hard on. I swear I was ready to shoot there and then. As he pushed up my skirt exposing my stockings his hands were all over me, slowly peeling my panties down my thighs exposing my shaved cock to him. Hmmm lovely he said you’re a real slut aren't you as he placed his mouth over it and started sucking. I lasted about 30 seconds before shooting my load into his mouth. I don't think I'd ever cum so much. He stopped sucking, swallowed some and spat the rest onto his hand and fingers. Now it's my turn he said. He pushed my legs over my shoulders exposing me fully before slapping the rest of my cum in and around my bottom fingering my hole frantically. I was loving it. I'd done this to myself on many occasion thinking what it must feel like to be fucked like a girl and was about to find out. Are you ready he asked? Yes I said fuck me, fuck me like a girl. With that he leaned into me and slowly but surely started to penetrate me. Bit by bit being as gentle as he could he forced his way into me. Yes it was painful to start but when he had me fully wet and fully inserted into me he moved back and forth. Closing my eyes I was in heaven being fucked in a way I'd always wanted like the girl I'd always wanted to be. Calling me all kinds of dirty slutty names he started to pump faster. At the same time he was snogging me and pulling and twisting my nipples. I was in heaven and loving every minutes. Then he called out take that you fucking slut and shot his load up me. I swear I could feel it squirting in me. At the same time without touching myself I came again shooting my load lover my auntie’s skirt and blouse. After a short while he pulled out with a plot with his cum starting to ooze out of me. Can I have a tissue I asked but he said no just pull your knickers up like a slut and let it dribble into them. Now fuck off out of my house and trust me slut you'll be coming around for more tomorrow otherwise you know the consequences. I left quickly all satisfied but my legs were like jelly and couldn't wait to be a slut for him again. As soon as I got in though I striped off and put aunties clothes in the wash as I didn't think she'd appreciate spunk stains all over them.