"Kyle!" My sister, Kelly, called to me from her room.
I was down in the kitchen, rummaging through the cabinets looking for something to have for breakfast. Kelly and I were both home from college for the holiday break. I was a graduate student and Kelly was a sophomore, being three years younger than me. Mom and Dad had left early this morning to drive up to Oklahoma City to go Christmas shopping and they told us they'd be gone all day -- so, Kelly and I were left to fend for ourselves until sometime late this evening when Mom and Dad returned.
"In the kitchen!" I yelled back to her. "You want some breakfast?"
"I'm right here," I heard her say, standing right behind me. "You don't have to yell."
I turned to see Kelly standing behind me in one of her short sleep shirts. It was barely long enough to hide her panties from my searching eyes. Her nipples were poking out from under her shirt and I could easily see the bulk of her breasts straining against the thin t-shirt material. I tried very hard not to stare at her, since I definitely didn't want her to get self-conscious and go back to her bedroom and put something else on. Besides, I didn't need to stare - I'd seen her naked enough times to know exactly what she looked like underneath the shirt.
Kelly and I made small talk as we had a breakfast of cold cereal and juice. Once she was finished eating, Kelly asked, "Can you come up to my room for a few minutes? I've got something to talk to you about."
Figuring she wanted to talk about Christmas presents for Mom and Dad, I told her I'd be up in a few minutes. The last few years, Kelly and I combined our meager earnings to get Mom and Dad a present from the both of us, and I was sure she wanted to see about doing the same thing this year. So, after I cleaned up our dishes and put them in the dishwasher, I went up to Kelly's room.
She was still in her sleep shirt, brushing her hair, as I stopped in her door way and looked in. With every stroke of her brush, I could see her breasts jiggle and the tips of her nipples graze against her shirt. Kelly was an amazingly beautiful girl, completely unaware how stunning she was, or how her tight, lithe body affected me. She seemed to blossom into womanhood almost overnight when she was a senior in high school. One day she was my scrawny, knobby kneed little sister, and the next moment, she was an eighteen year old knock out, and she didn't even know it.
Looking at her, I felt a little guilty about fantasizing and thinking about by own little sister in a sexual way, but, it was really her own fault. She wore the skimpiest outfits around me, and it was unbelievably easy to catch her dressing and undressing behind her almost closed door. She was completely oblivious to the incredible shows she'd been giving me for the last three years, and I'd even stroked myself numerous times standing out in the hallway outside her door after Mom and Dad had gone to bed, watching her undress -- even seeing her touch herself one night after a late night shower. Kelly was a walking fantasy for me and the primary reason I came home to visit as much as I did. If I knew Kelly was going to be home, I'd be there, too.
One thing I really loved about Kelly was that she was incredibly carelessness with her panties. She'd leave them in the bathroom or in plain sight on the floor of her bed room, just begging me to inspect and examine them closely. It was never hard for me to get a pair of her warm, moist panties -- and if I timed it right, I could usually have them in my hands within ten or fifteen minutes of the time she took them off. Believe me, they were something to behold, and I enjoyed them immensely. I would simply hide them in the big laundry basket in the laundry room when I was done with them, Mom would wash them up and no one would know. I'd done it probably a hundred times.
Although Kelly and I go to different schools, and I only see her at home for holidays and school breaks, she was still my faithful eye candy and I measured every girl's beauty against hers. She was truly an alluring and sexy girl, and she quickly became the center of all my fantasies and masturbation sessions.
When Kelly saw me standing in her doorway, she pointed to her bed and asked me to come in. As I sat down she asked, "Do you know what the term 'Quid Pro Quo' means?"
"Sure." I answered. "It means if you do something for me, I'll do something for you."
"Exactly!" Kelly exclaimed, followed by, "And I'm glad you defined it in those terms because I think there's a little Quid Pro Quo you owe me. Since Mom and Dad are going to be gone until late, I thought today would be a good time to collect."
"I'm not following you." I replied.
"Kyle," she explained, "whether you believe it or not, I'm not blind or stupid. I know you've been peeking at me and stealing my panties for at least a couple of years. I've never said anything or tried to stop you. But, it's time for you to pay me back."
It took me a few seconds to comprehend what she said, and I knew it was time to make my exit to the safety of my own room. When I started to get up from her bed, she took a few steps and stood in front of me. "Not so fast, big brother." She warned, with a serious look in her eyes.
"You're going to hear me out." Kelly advised. "I've let you watch me in the bathroom when I take a shower or a bath. I leave my bedroom door cracked open so you can peek in and watch me get dressed and undressed. I've left my panties where you could find them and given you ample opportunities to see me naked."
"Kyle," she continued, with her hand on her hips, "I even shaved my pussy, and kept it shaved so you could see it better. I've let you watch me play with myself and I always gave you enough time to make yourself cum when you were peeking at me."
"You must be out of your mind, Kelly." I argued as I tried to get by her and out the door.
"I hope you're not trying to deny any of this," Kelly answered sternly, "because if you are, you're going to regret it."
"Kelly...." I said, about to try to defend myself. But she stopped me and told me to let her finish.
"Look, Kyle," Kelly said sympathetically, "I don't want you to think I'm mad, because I'm not. I know you've been doing this for a while, and honestly, I could have stopped it any time if I'd wanted to. The truth is, I let it go on because I enjoyed teasing you and making you hot for me. But, it's time for you to pay me back, and if you don't, I promise you'll never see me naked again and you'll never get another pair of my panties as long as I live. I mean that, Kyle.... I'm not kidding."
One thing about Kelly, she knew how to express herself, and the words she'd chosen to chew me out left no question in my mind where we stood. I was busted and she wanted some thing in return.