.." I said softly."There is," she said - and her hand found my erect cock.Sometime later, we were both at the gym when Mark arrived. He had cut hishai... and looked a little different - not as different as I did of course.By now I had grown my stubble into a full beard that Janelle said sheliked. I had only a faint concern that he would recognize me but that wasallayed when he brushed past on his way to see Janelle.I watched from a distance on the leg press machine as he walked to herand began to. The graphic pictures of the spread pussies and assholes had the k** groaning and a wet spot was forming at the end of that bulge in his pants. I told him to go ahead and pull it out. I made sure my door was locked then I undid my own pants, pulling them and my underwear down to expose my own very rigid cock. He nervously undid his and pulled out a very impressive piece of meat. I didn't have much to go by at the time not seeing any others in person but my own and my dad's a couple times, but it. I've checked online. By any standard you can think of, my big sister has a cock any dumb fuck guy would be proud to own, judging by the bulge in her skirt! Listen! If anyone really does figure out who I am, keep in mind I'll beat the snot out of you if anyone gives my sister a hard time about being a hermaphrodite!Oh shit! Oh shit! Breathing deep here! Huh, Huh, huh. Crap! She's speeding up! I admit it; I've been a cock tease to my sister for a couple years now. I let her have a glimpse of. I grip the base of your cock with my other hand, toying with the thick part, feeling you throb against my fingers and lips. I slide my mouth down over you once again, soaking your cock with my saliva as I move my head up and down on your shaft. You go deeper and deeper with each stroke, your hands going to my head to push my hair out of the way and tug me down further onto you. Your hips start to work in an undeniable rhythm, slowly easing yourself out of my mouth before pressing the tender.