This happened along time ago, I went to visit my best friend, and his older sister answered the door, she was freaking hot. She invited me in, and told me her Mom, and my best friend had gone to the store and would be right back. I sat in the chair, and she sat on the couch. I think she was about 18, and I was 13, just hitting the age where anything gives you a boner. I kept staring at her tits, I could tell she wasn't wearing a bra. I wasn't very discreet, and she caught me staring. She giggled, and said, "Lets go in the kitchen." She then says, "I will show you my tits, if you pull down your pants." I was embarrassed, but I did it anyway. My dick was hard, and she gave me a little smile. She pulls out one of her tits, and says, "What do you think?" Her tit was fantastic, Playboy quality! She then takes her finger, licks it and rubs her nipple. She then asks, "Do you want to touch it, or maybe suck on it?" I lost it right then, I start spurting all over the kitchen floor. Being 13, I had no dick control. She begins to laugh at me, I see my friends Moms car pull into the driveway. We are cleaning up cum off the kitchen floor, as fast as we can. I was so embarrassed, I told my friend I had to go home. I never did get to touch his sisters tits, I think I was scarred by the experience. I didn't lost my virginity until I was almost 22.