When she got back from her appointment, she came to my room. "Thanks bro! I feel so smooth and sexy now!" "Yeah? let me see," I told her. Shyly, she lifted her little sundress and showed me her bald pussy and ass, barely covered by a tiny thong that already had a little wet spot on it. "Turn around and bend over," I told her. She raised an eyebrow, but did as I asked. "You really do feel sexy right now, don't you sis?" I said, touching her little wet spot, making her jump a little bit. "Hey now, bro, you can't be touching your little sister there!" "Oh yes I can," I replied. "You owe me." "Mmmm," was her only reply as my finger slipped under her thong, caressing her smooth, slick pussy. My thumb pressed up against her tight, smooth little pucker and she involuntarily pressed back against it. As my finger teased her clit, she protested weakly, "Uh, bro, this doesn't seem right..." "You owe me," I reminded her. "Now turn around and get on your knees."

My little sister hesitated, but complied, knowing what would come next. I unzipped and dropped my jeans, my cock pressing hard against my boxer briefs. "Pull it out," I demanded. She looked up at me, unaccustomed to me talking to her like this. She'd heard me through the walls when I'd had girls over when our Mom was gone, so she knew the tone. She also knew the sounds of pleasure from the girls that came next, and her little thong kept getting wetter. She reached in and pulled out my engorged cock, shocked that she could barely get her hand around it. "My god bro, you want me to fit this in my mouth?" she asked. She'd had boyfriends before, and had even fumbled around while making out, but she'd never given a proper blow job before, much less been fucked. None of the boys had really known what they were doing.

Gingerly, she managed to get her lips around the head and started slurping on it like a lollipop. "Suck it right, sis!" I said, pushing her head down onto my cock. I had to guide her on just how to do it right, and she slowly got the hang of it, looking up for approval. My smile of pleasure made her proud when she got it right. "Okay, sis, now it's time to pay me back."

"Wait, what?" she replied. "I thought I just did!" "You don't think I'd pay to get your pussy waxed without enjoying it, did you?" I asked. Not unwillingly, she got up and laid down on my bed. Her little sundress didn't even cover her now-soaked thong, which betrayed her feeble protest. I ran my tongue and fingers around and under her thong, enjoying her smoothness and slickness as she moaned in pleasure. I pushed her panties to the side and my finger caressed her bare clit, bringing her just to the edge of orgasm. "Please bro!" she moaned. "Please what?" I asked. "Please let me cum!" "It's not your turn yet, sis," I replied. Getting up, I removed the rest of my clothes and slid my cock past her wet thong. "You're not going to fuck your own little sister, are you?" she asked, surprised, yet clearly hopeful. "Yes I am. I'm going to take what's mine," I replied, pushing the just head of my cock into her tight, bald pussy.

Her eyes rolled back into her head as I pushed further and further in, her tightness keeping me on the edge of exploding. As she accommodated my size, much bigger than any of her boyfriends' little cocks, I started pushing into her harder and harder, the wet slapping sound of my balls hitting her ass and the scent of her arousal filling the room. "My god bro, I'm cumming!" she moaned. With that I slammed into her tight little pussy and pushed hard up against her unprotected cervix and we came together. My hot cum flooded her pussy and then ran down her smooth ass as I continued to slowly pump my cock in and out of her .

Finally pulling out and collapsing on top of her, I pulled her little thong back over her smooth pussy in a useless attempt at keeping my cum inside. I pulled her little sundress back down as far as I could, which wasn't very far. "I'm going to enjoy having my own fuck toy in our own house," I said, while running my thumb over her clit. "Wait, I just repaid my debt!" she feebly protested. "I'll decide when you've repaid me," I said. "Besides, you don't want mom to know you're no longer a virgin," I said, showing her the photo I'd surreptitiously taken of my cock plowing her pussy, clearly showing her own panties, but my own cock not clearly identifiable. "You bastard!" she said, but she couldn't suppress a smile at the thought of getting fucked by her own brother whenever he felt like it.