Visiting My Little Sister

As a freshman in college, I was home for the day (to visit with my younger sister). We had been watching cartoons all morning and I was getting bored. My sister was glued to the TV, so I took the opportunity to go back to my room and glance through the stack of porn mags I had collected. As time passed, I was rubbing my crotch more and more. I had to jerk off. I got undressed, brought out my jar of massage lotion, and was giving myself a good whack... that is when I noticed my door had opened and my little (16 y/o) sister was staring at me, eyes wide. She asked, "what are you doing?" I froze! Standing there naked, hard-on in hand...

"I thought you were watching TV." 

"I got bored.", as she then walked into my room to stand right in front of me. "Can I watch what you are doing?" I was about to cum, and my little sister was right in the path. I squeezed my dick hard so that I wouldn't shoot cum on her. 

I said, "It's called 'Masturbating', when someone rubs their genitals." I added, it causes the body to release 'cum'. Because you were watching TV, I thought I might have a 'private moment' to do something for myself." 

"Show me." were her next words. I was so embarrassed at this point, standing naked in front of this teenage girl, squeezing my dick hard enough to stop my jizz from spraying my sisters face. "Can girls masturbate the same way?" All I could do was nod. 

Again, she said, "Show me." I grabbed my tee-shirt out of the laundry-basket and unloaded. 

"You want me to show you how to masturbate, is that right?" This time she nodded to the affirmative. (this is weird) "Ok, as you can see, I'm naked, I think it would be easier for both of us if you were naked too. My sister pulled her tee off, instantly. She wasn't wearing her training bra, and her nipples were pointing out hard. Then she pulled down her pants and panties in one motion, now she was standing naked in front of me. My dick twitched. "May I touch you?" I asked. She nodded to the affirmative. I stepped behind her and place a fingertip from each hand onto her little breasts and I started to rub her nipples. She made a sound; I think it was enjoyment. I stopped only long enough to add a little more lotion to my fingertips and continued massaging her nipples. Now I know she made a sound of enjoyment. 

"Is this masturbating for girls?" 

"No, it gets more involved than just this... this is only the start." I took one hand off of her right breast and moved it lower to her v-j. I found the button at the front and started rubbing it as well. 

She gasped. "That's (wow) amazing." "Let me try." "You can go back to masturbating yourself, if you like." 

"Lay down on my bed, spread your legs wide apart, that way you can reach that spot really well, and I can watch to see if you are doing it correctly." She did just what I said, I had a wonderful view and we both masturbated together. I came again. 

She asked if she could just watch me masturbate, now. I told her I would need a little time to be able to do that again. Neither of us got dressed and just spent the day naked. 

A few days later, the weekend arrived, my sister was at my door asking me if we could do that again (soon). 

"When did you have in mind?" 

"Today, mom is shopping, and dad is playing golf." 

"If you want too, sure." 

"I invited Sara, a classmate to come over. She doesn't have an older brother." What was I to do? Do I back-out, postpone That was when Sara arrived. She may have been in my sister's class at school, but she was not in my sister's 'Class'. She stood about 2 inches taller, had nearly fully formed breasts and very shapely hips. Sara was wearing an (above the knee) skirt and white shirt. As far as I could tell, she too wasn't wearing a bra. I later discovered she wasn't wearing panties either. "We want to go play in the park, will you join us in a game of 'tag' or something?" I followed as they led the way to the park. As we arrived at the park, the girls jumped on the swings, in unison the said, "Push us." I took turns pushing them both higher and higher on the swings. That's when I noticed, the air was lifting the back of Sara's Skirt, and her ass was exposed. The park was practically empty, I let my hand (accidently) land under her skirt as I pushed her. I firmly felt my hand land on her ass and my thumb right on her crack. Sara didn't seem to mind. After they were done with the swings, they both ran to the 'Jungle-Gym'. As Sara was climbing to the top, she called to me, "Look at me", and spread her legs wide enough for me to look right up her skirt. While playing on the jungle-gym, she let many of the buttons on her blouse pop open. Sara didn't try to cover up or re-fasten her blouse. The girls told me they were ready to head back home. 

Along the walk home, my sister whispered to me, "Sara likes you." As soon as we got home the girls ran to my sister's room and shut the door. We don't have locks on our bedroom doors, we know better and are careful. 

I made lunch for myself and the girls, I was telling them food was ready when my sister said, "We're not hungry yet, we'll eat latter. Can you come in here, please." I knocked on my sister's door, "Come in." I entered to discover them both naked, "Sara wants you to show her exactly what you showed me."