My sister Linda and I are a year apart in age so we've always been very close. Growing up in a rural area, we only had each other as playmates as children. As we grew older, we continued to be the best of friends. We shared all our dreams and secrets with each other.
When Linda was 13 and I was 12 she came to me and rather bluntly told me she wanted to practice kissing with me. I was a bit nervous about the idea but she pleaded. "Rick, I don't want to look like a fool when I kiss my first real boyfriend so I want to practice with you. You want to be good at it for your first girlfriend, right?" I didn't have a reasonable argument so I gave in. We practiced almost daily over the entire summer but that's as far as it went.
As time went by, Linda found her first boyfriend and I my first girl. I guess I was a good kisser. I didn't hear any complaints. I assume it went about the same for Linda.
One Christmas when I was 18 and a senior in high school and Linda 19 and starting community college, our parents announced that we'd all be going to spend the holiday at our grandparent's house. We hadn't seen them in a few years so Linda and I were both up for it.
Our grandparents had a modest three bedroom house. Whenever we'd gone to visit before, Linda and I had shared a bedroom with twin beds. We didn't think anything about it and apparently neither did our parents. When we arrived Dad handed Linda's and my bags to me and said "Take these up to your room."
It was already late when we arrived and Linda announced almost immediately that she was tired and going to bed. I stayed up a bit longer to let my granddad beat me at a few games of checkers. After the third game I decided I'd had enough for the day and headed for bed.
When I walked into the room I could see that Linda was already asleep. She always slept in just her panties and a tee shirt and I'd seen her that way a thousand times. The house was kept pretty warm as older people tend to do and Linda had kicked the covers down below her knees. Her left hand had pushed her shirt up to just below her breasts and it looked like her hand was cupping her right breast. I felt a small stirring in my loins at the sexy sight and tried to shrug it off.
I sat on the other bed facing her and kicked off my shoes and socks. As I pulled my shirt over my head I heard Linda stir. I pulled the shirt from my head and saw that Linda had pulled her shirt up higher until it was above her right breast with her hand just covering her mound. Again I felt the rising feeling in my crotch. As I tugged off my jeans I couldn't take my eyes off of her. I chastised myself for thinking about my sister this way and silently wished she'd move her hand out of the way at the same time.
My hand involuntarily moved inside my boxers and massaged my growing cock as I sat on the edge of the bed facing my beautiful sister. My eyes travelled from her barely hidden tits down to the bulging mound of her pussy in those tiny panties and back up again.
Linda stirred again and shook me from my incestuous thoughts. I quickly rolled back and pulled the covers over me. I looked over to see that she had rolled onto her side facing me and now both her tits were completely exposed. I hadn't seen them since they had first started to bud. They were amazing. Perfect globes with areolas about an inch and a half in diameter topped by pinky sized nipples. My imagination was going wild.
She still appeared to be sound asleep so I lowered my covers and pulled my boxers down and started stroking myself. I quickly grew to my full size of about seven and a half inches. Precum was already seeping from my engorged head. I thumbed the tip and continued jerking myself while staring at my sister's fantastic tits and panty covered pussy. I wasn't going to last long.
Suddenly, I felt my balls tighten and the inflamed head of my cock swell to bursting. I couldn't cum all over my grandparents sheets. It might look a little suspicious coming down to breakfast in the morning with an armload of bedclothes. Left without much choice, I came all over my chest and belly. I knew I wasn't going to make it down the hall to the bathroom coated with my cream. It was already starting to dribble off the side of my stomach towards the sheets. Thinking quickly, I scraped the cum up with the side of my hand and licked it off. I'd tasted my own cum before out of curiosity but never actually scooped it up and ate it as I was doing now. The taste didn't bother me and I quickly finished cleaning myself up in the same manner. When I was done, I lay there with my rapidly deflating cock still laying across my lower belly. My breathing was just starting to return to normal.
"That was cool." I just about had a heart attack at the sound of Linda's voice. I looked over at her to see her staring wide eyed at me laying there. Quickly, I snatched the covers up over myself.
"Linda!"
"There's no sense in covering up now, Rick. I've already seen it all." I could see that her breasts were still uncovered and she was rolling her nipple between her fingers. "I never knew you were so big."
"Linda!" I wanted to die.
"Oh, quit being embarrassed. I really liked watching you." Suddenly realizing that she was still playing with herself, she removed her hand from her breast and pulled her shirt down. "I'd like to watch you do it again if you'll let me."
"Shut up!" I couldn't believe I was hearing this from my own sister. Yeah, that would be the same sister I just jerked off to thoughts of.
"You shut up Rick, or the whole house will be in here wondering what's going on. Not only that, if you don't let me watch you do it again I'll tell Mom and Dad that you jerked off while looking at me." Suddenly, an evil grin loomed on her face.
"Linda, don't be crazy. You're my sister!"
"That's your defense? I'm going to tell Mom." She swung her legs off the bed as if to head for the door.
"No, wait, wait."
Linda turned back to me. "So it's a deal?"
I didn't see any way out of it. Besides, something about the idea was starting to turn me on. I'd never seen this forceful side of my sister before. "I, I guess so."
"Good." She plopped back onto her bed and sat cross legged facing me. I've got some questions too." She said with a big grin on her face.
"Great. You're really enjoying this aren't you?" I said, beaten.
"Yes, I am little brother." Her grin widened. "First question. Do you always eat your cum?"