He built it with a ridge made with two inch steel tubing under the leather covering. It ran down the middle from front to back. The steel tubes that... connected to the frame was welded to the tube that ran down the middle of my seat. My bare cunt and ass rested on the ridge while I was riding behind him. The vibrations of the bike transferred to the steel tubing in my seat. This would produce orgasms for me as we rode down the highway. He could tell when I was cumming because I would squeeze. .. that IS good”, I replied, continuing, “You can stop licking when you need to answer me. Have you ever even sucked a cock before?” I demanded, more than a bit curious about the response.“No... but...”, she answered between licks.“But what??” I demanded.“I’ve practiced...” “on plenty of things...” “but they weren’t...” “this...” size...” she finished. I flexed my cock unexpectedly up and let it slap down on her tongue, to which she giggled “ah! ah!” Excitedly to while licking again.“Let’s. I was always defensive to the point of my family always picking on me for being a "brother" to a "sister". Anyway Uni flew by and my "sister" would always be defensive of me in front of other girls, I think without her, I would not have got through Uni, we shared a lot of information on what we received from our lectures and were always helping each other out with our studies. By the time Uni came to an end, we both went our separate ways but kept in communication, she moved out of town and I. His eyes rose, taking note of how her lashes fluttered each time over closed eyes, the tip of her pink tongue pushing out between her soft lips. She was definitely enjoying herself. Clutching the top of the fence with his free hand, he continued to slowly stroke his full erect cock, unable to tear his eyes away. Even the application of lotion upon her arms and shoulders turned into an erotic vision, her delicate hands leaving her skin glistening in their wake.He wondered if the show was over.