I laid on my bed and was looking at my mobile. A few minutes later, the bathroom door opened and my jaw dropped. My sister came out wrapped just in a ...owel. Last time when I saw, she was still looking like a kid but now she is 18 and puberty hit her well as her boobs and ass got huge. I was awestruck.When she saw me, she came running to me and hugged me. Her boobs were pressing against my chest and I could feel her nipples. That was heaven. I couldn’t resist and casually placed my hand on my. .............."What did you have in mind? Watch the sunset on a beach? Dance beneath moonlight? I'll do whatever!"...............she placed a finger on her pink lips, "Hmm... Is it true what your friends say? While having a little conversation with one of them, and he mentioned you thought I'm the most beautiful girl you've ever seen? That you'd absolutely love a chance with my body! Do you want that chance now?"............... I'm in shock, stuttering and choking but manage to mumble a few. She rolls her tongue all around the hot shaft and kisses and sucks my balls too. She is busy slowly sucking my dick but I suddenly start pressing her head from above and giving her deepthroats and gag her for some time. She enjoys it without any hesitation. After a couple of deepthroats, she starts moving her head and hand faster to making me lean back again on the seat. With my hands-free, I enter her panty from behind and start to play with her pussy. As soon as I touch her she bites my dick. I promise not to bite." I looked at my hands and I had been squeezing them together so hard, in white-knuckled grip for some reason. Susan's smile makes me feel foolish. She closes the door to the kitchen. ”How was the move,” Susan asked. I was trying hard to appear intelligent. "Ok," I answered, "I must have parked in your spot." brushing my dripping hair away from my face and put it into place behind my ears. “I must look like an idiot.”"Sorry, got to get this wet stuff off," I mumbled as she.