Until now, my sister and I have never discussed our individual sexual activities with each other. Occasionally, she asks me questions about sex or things she’s heard about at school and I answer her as best I can. A military father can be pretty strict, especially with a daughter, and Lisa was not allowed to date until she was 17. She is inexperienced and naive, and I’m pretty sure she’s still a virgin. I always caution her about getting sexually active too fast. I’ve had a few girlfriends who have been willing to experiment, so I’ve eaten pussy, had blowjobs and fucked a few times. But at 18 years old, in a new High School, I haven’t been getting any action lately.
Since I don’t have a steady girlfriend, I’m making do with my own hand outside my sister’s window pretty regularly. Don’t get me wrong, it’s a great show, but I’m getting really horny and starting to think about my sister’s body in ways that a brother shouldn’t. I find myself wanting to do more than just watch. I want to touch her. I kept fantasizing that she knows I’m out here and she’s putting on a show for me. I know it isn’t true, but it fuels my desire to touch her and have her touch me.
One afternoon when we’re alone, I head around the house because my sister has suggested we go for a swim. I’m in my swimsuit and want to get a quick look at her naked body before we get in the pool. By the time I get outside her window, she is down to her bra and panties. This happens quite often now, because I know how long I can take to change into my swimsuit and get around the house to see her naked. Her tits bounce a couple of times as she slips off her bra and I can’t help but rub my cock through my swimsuit. She bends over to take her panties off and I get a great side view of her tits hanging down. Her tits look like round little cones, hanging there, with her nipples pointing toward the floor.
God, how I want to touch and suck her tits and make her nipples hard! I pull my cock out of my swimsuit; slowly stroke the length of it, as she turns around to get her swimsuit out of her dresser. When she bends over to pull her swimsuit bottom on, I see her tight, round ass and her small pussy lips hanging down. I fantasize about what it would feel like to slide my cock between those lips, while she is bent over like that, burying myself deep inside her tight, virgin snatch.
As she finishes putting her swimsuit on and is opening her bedroom door, I tuck my cock back in my swimsuit and turn toward the pool. The sound of her cell phone makes me turn back. I watch as she talks, but I can’t hear what she’s saying. She’s getting really upset, walking back and forth as she talks to whoever it is. After a couple of minutes she closes her phone and throws herself on her bed, crying.
I love my sister and despite the perverted nature of my fantasies. I don’t ever want to see her hurt. I want to know what’s wrong and help make it better. I go into the house, trying to figure out a way to approach her, without giving away how I know she’s upset. Fortunately, she left her bedroom door open when she went back to answer her phone. As I peek in, I see my sister lying on the bed, her head buried in a pillow and I can hear her sobbing. As I watch her body heaving up and down on the bed, I walk in and asked her what’s wrong.
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