“I think that will be acceptable to my wife,” I laughed and withdrew my cock from her. Andy took up the position I had earlier and guided the tip ...f his cock to her pussy lips. I could see my cum dripping out as Andy pushed gently forward, sliding half his length into her. Jo gasped and moaned, “Gently does it.” Andy stopped and withdrew slighlty, then pushed in slowly until Jo had taken his whole length. He then started genltly pumping back and forth, stretching Jo's pussy to his massive. Too fast for me to count. I said thank you Mistress. The pain was intense but I stood still. She then walked in front of me and spanked my cock, this time it was slower so I was able to count... one, two, three, .... she stopped at twenty three.I am sure she could tell that I was in agony by the way I said each number and by the way my body instinctively squirmed away from the last few swats. She hit my balls with her paddle and it nearly dropped me... OMG that hurt I thought as she smiled.. I collapsed over her, rubbing the cum between us.Since then, any time she was in the mood, all she had to do was touch my butt and I was hard. All of our sessions involved her sticking her fingers up there to get me harder than steel. As we progressed she started to introduce her dildos. We would be in the 69 position, and she would grab her rabbit dildo and slowly ease it in when I was ready. Almost every time she slid it in, another 2 pumps and I would shoot.I loved having my ass played with.. Oh yes and they had a bathroom but you had to get the key from the attendant. The key was chained to a hubcap off an old Lincoln Continental. Yeah I got the complete story while I was crossing my legs and trying hard not to pee my pants. There was only the one bathroom too. That place belonged in the Guinness Book of World Records as the oldest Gas Station in the World.I had just finished peeing and was washing my hands when someone started pounding on the door. I dried my hands off as quickly.