I step out gingerly and climb back into the bath and prepare for more pain and humiliation."How many more will I need mistress" I ask."Until you run c...rystal clean. My guess is at least four more." You smile while preparing the bag.I groan as you plug the nozzle in again and I start to fill again. The ritual filling, parading round and voiding is repeated over and over until you are satisfied that I am ready to receive you."Well done slut. You have held more each time. I am pleased with you. I was pressing her boobs gently and making to and fro motion on her ass with my dick. She said that not now, her child may wake up. I was disappointed but she planted a kiss on my lips saying that tomorrow is the day you are waiting for. I was very exited and slept.Next day, I woke up at 8.30 and her child went to school. I was searching for her all the house , she was bathing by locking her bedroom door. So I went to fresh up myself.After 20 min I came out but still she didn’t come out of the. It took about a year of this before anything else changed much. We were both working hard, and we were both shocked when we met the two of them. Rissa's boyfriend, Max, was just another in a long list for a start, but I noticed after a month that she'd not moved on, and spoke with her about it. She was surprised herself, not having really noticed, but admitted things with her man were good, and that she was in no hurry to do anything about it.I was less enthusiastic than I might ordinarily have. .............."You know when I said "I've been a naughty girl and I need to be taught a lesson?" I replied "Yes......" "Well now it is time to give me that lesson.........." she said. I was lost and didn't know what she meant. "I want you to fulfill one of your fantasies and one of my fantasies with me..............." With a growl in her voice she continued.......... "Double Penetration! Are you up for it?" I replied "With you I’m up for anything you want me to do with you......." Thinking.