Needed money

I'd overspent and needed extra cash quickly, but there was a catch. I'd overspent before and was told to watch my spending, or they would cut back my allowance. I 21 needed to pay off a new dress bill, or they would send it to my parents. Who would pay and then cut my allowance to encourage me to be more financially prudent. My only chance to pay it back was to ask my brother (23) for the money; he saved his money where I spent mine. My friends and I always teased him and so I wasn't the favor the month with him, well anytime really. But I'd one idea that might enable me to get him to pay off the dress. I'd caught him watching me change, I hadn't gotten naked just down to my underwear. I thought I might get him to pay off the dress just by letting watch me change dresses. My brother is very smart and always done well at college. I struggled, but I still thought he would go for it. He didn't, he'd quickly realized I was caught between a rock and hard place, and he could do much better than a couple of times watching me change a dress. He didn't ask for sex, that would give me the advantage, instead he asked for us to shower together three times. I at first said No, but my brother knew I would change my mind. Which I did, I was really desperate and so I agreed. I thought my brother had a weedy type of body no muscle just skin and bone. I was very wrong, my brother studied hard, but he also worked out and done martial arts. He looked thin, but it was all toned muscle. Our first shower together I got big surprise, he got aroused and I got a second surprise. His cock was the biggest I'd seen. I'd to touch it and got him off and might have reduced our showering together down to just the once. If I'd thought of it, but I hadn't, in fact I was looking forward to showering with him again. I also had to satisfy myself after the shower, we could only shower together when we were alone at home together. So, it was several days before next shower together. But my brother had paid for the dress, again during the shower he got aroused and I helped get him off again. Then my parents were going to be away from Friday thru to Sunday evening and as usual I was told no parties. They never said it to my brother because he would never have a party without asking them first. He also had never had a party that I know of anyway. So, we would be able to shower together Friday or Saturday night, I decided Friday would be perfect. My brother simply agreed, with the house to left just to us, there was no need to hurry. But things took a twist, not a strange twist just went off script you could say. I should have seen it coming but hadn't. While showering together both aroused the stroking of my brother's cock went further than it had before. We fucked in the shower than in his bed, I take precautions so no worries about pregnancy. Then all day Saturday we stayed close and fucked even more. Again, sleeping in my brother's bed Saturday night and fucking thru Sunday and we were in the shower together when our parent's got home. But we separated before they got inside the house, my brother having dressed quickly met them downstairs. I came down a little later after dressing for bed. The old phrase once you start it's hard to stop is true, we've continued our sexual relationship, every chance we get we fuck. I also started studying with my brother's help and my grades have improved greatly. I'm no longer the party girl I was, I'm my brother's lover.