Now I had established another place to fuck her, I took full advantage. Although the risk at work was fun and exciting (for both of us I think) it was less attractive now I had found where she lived and could enjoy her properly. For the next month I turned up at her door regularly and there was never much to be said. I just marched her into her bedroom and fucked her. Sometimes I tied her, sometimes I didn't but I maintained a level of control anyway. Then, one morning I turned up horny and impatient and she looked alarmed. She was still in her bathrobe (she only got dressed just before she had to go out) and as soon as she opened the door she shook her head and said
"No, not today, we can't, Claire is still here, she's not working today."
I knew she shared with her sister but she hadn't been there when I had called before and I'd almost forgotten about her. Well, my cock was very keen on another visit to Kerry's cunt so I just pushed past her and went into the lounge. Her sister was sitting on the sofa watching Jeremy Kyle. She wasn't dressed either and her bathrobe was shorter than Kerry's and showed a nice expanse of leg. She looked a little older, darker hair and the bulge in her robe suggested that she had the family tits, not quite as big a Kerry but a good handful. She was also smoking a joint and looked curiously at me through the haze of smoke.
"Hi!" I said, leaning towards her and offering my hand "I'm Greg, Kerry's team leader." She moved a little and barely shook my hand, although it was enough to give me a glimpse of cleavage.
By now Kerry was standing next to me so I put my arm around her waist and pulled her closer. I felt her stiffen but I was in no mood to be denied.
"I have been giving Kerry some extra training...you know, customer service, how to make people happy and content with what she has to offer them, and she offers almost everything now, it's been great finding out how accommodating she can be when required. She obviously has more experience than I first thought, she has even taken her 'A' levels, although I haven't explored that with her yet I know others have."
At that point I dropped my hand behind her and gave her arse a firm squeeze so that her sister was in no doubt what I meant by 'A' level.
"We are just going into her room now for another session. I won't keep her tied up for too long, I'll be gone as soon as I'm satisfied that she is taking it all in."
With that I gave her a broad wink and grabbed hold of Kerry's hand before pulling her towards her bedroom. The two bedrooms were off a short corridor from the lounge, next to each other with a bathroom opposite. Kerry's bedroom was the first one and therefore shared a wall with the lounge. As I pulled her inside she was still hissing "no, no, she will hear everything." But I took no notice. I pushed her down onto the bed and pulled off her robe, once more pulling the belt free. I quickly tied her hands together with one end of the belt and tied the other to the headboard. This gave me more flexibility in moving her around than tying her in the crucifix position. I quickly stripped off and straddled her with, as usual, my cock between her tits.
"Honestly Kerry, I really can't believe you sometimes! You wanted to say 'no' to me today didn't you? I thought that we had agree that in exchange for you keeping your job I could have you anytime I want? Isn't that true?"
She just nodded
"You have had men back here before haven't you?"
"Yes, but late, when she has been in bed."
"How about at home?"
"No, never allowed to have boys back."
"How about her? Have you heard her fucking?"
"No, never."
"Well that's interesting then as she is about to hear her little sister getting fucked in the arse. I have been saving that hole for a special occasion and you trying to say 'no' seems to fit the bill. Let's start though by letting her hear what you sound like when you cum before I give your arse a fucking it won't forget."
With that I squeezed her tits together and thrust my cock nice and hard between them before getting off her. I opened her bedside draw and took out the vibrator I knew she had in there.
"She must have heard you using this." I said.
She shook her head. "No, never use it when she is here."
Truth to tell I could understand why. It was quite a cheap one and pretty noisy. My wife has an expensive one from Anne Summers that is fairly quiet but this one made a noise like a motorbike with a broken exhaust! However, having used it on her before I knew that Kerry loved how it felt and would have as many orgasms as the battery life would allow.
I got down between her legs and pushed them wide apart. I could see she was aroused as her cunt was a deeper shade of pink and her inner lips were engorged and poking out of her slit. I ran the tip of the toy up and down a few times, spreading her cunt lips wider until I could see her clit starting to poke out.
"Are you ready." I said
Looking up I could see that she was biting her lip, probably trying to keep quiet as she knew that she would react once I turned the toy on.
I turned the toy to the first setting and it started to buzz started as it vibrated in my hand. Despite being cheap it was obviously powerful as the moment I ran it over her clit she bucked her hips and stifled a moan. I ran it up and down her cunt lips, turning and twisting so that it spread them wider and I could see her getting wetter and wetter. I turned it up to the next level and rubbed it hard against her clit, making her legs shake as I did so. Her breath was now coming in gasps and she had forgotten about being quiet as I continued my assault on her, turning the toy to it's highest setting as I probed the dripping gash between her legs.
It was a very powerful feeling having her tied and at my mercy. I wanted her to cum, I wanted her sister to hear, I wanted her to have no control over her body, I wanted it to react as I wanted it to react. So I made her cum. I rubbed the vibrator hard against her clit, scrubbing furiously from side to side as I did so. She almost screamed as she came. If I wanted her sister to hear in the next room then no problem, I think she would have heard Kerry orgasm if she had been outside!
As she gasped and groaned I did what I enjoyed best. I moved the tip of the toy down to her cunt hole and pushed it inside her with one hard thrust. The sound changed as her body accepted the buzzing plastic and it became muffled, getting louder again as I pulled it out and then once more muffled as I rammed it deep inside her. I fucked her with the toy, listening to her moan and groan as I did so. I pushed her legs higher, exposing the puckered hole of her arse, my ultimate goal for that morning. I pulled the toy out and turned it down, marvelling at how wet it was.
I moved it down and started probing her tight brown hole, twisting and turning to open her up more and more as I worked it inside. It's a strange thing but I have always found that once you get a toy or your cock inside a woman's arse, it seems to suck you in. It was the same this time and once the first inch was in, the next four or five went in very smoothly until it was all the way in. She was wide eyed now, gasping for air and sweating as I gently started to work the toy in and out until she was taking it easily and I could turn it to the next setting.
I hadn't forgotten about her sister and was enjoying the thought that she would be listening to what I was doing to Kerry, but a movement in the corner of my eye made me think she was doing more than listen. I had deliberately left the door open a little but now it was certainly wider than I had left it. It was difficult to see with any certainty but I was pretty sure that Claire was watching through the gap of the door jamb. I thought I could see the white of her bathrobe breaking up the darkness. Dirty girl, I thought, well if you want to watch your sister getting fucked then that's fine by me.
I rolled Kerry onto her side facing the door and pulled the toy out. Her arse was much more open now and my straining cock was looking for a hole to fuck. I got behind her in the 'spoons' position and moved myself until my cock was lined up and in position. Kerry stiffened as I started to push firmly inside. There was some whimpering and I had to tell the stupid cow to relax but eventually, with a bit of force, I was balls deep inside her arse. I pulled her leg back over mine exposing her shaved cunt to her sister and started to fuck her hard. I managed to work up a nice rhythm and she was obviously enjoying it too from the noise she was making. I reached over and rubbed her clit for a few moments before pushing first one finger then two into her cunt. I could feel the outline of my cock against my fingers as I roughly pushed them in and out, enjoying how it made her wriggle around. The vibrator was sitting on the bed and the temptation to try it was irresistible. I pulled my fingers out of her sticky hole and wiped them on her before fumbling with the toy and turning it on.
Holding it against her clit was a big hit with her and she gave a long low moan as I pressed it hard against her. I could almost feel the vibrations in my cock even then, and when I pushed the buzzing toy deep into her cunt I think we were both in heaven! I loved the way it felt and managed to turn it to its highest setting as I started to fuck her harder and harder. The angles were awkward and I could not get as much purchase as I would have done had she been on her knees for an arse fucking but in a way that made it better as I lasted longer. Kerry appreciated it as I think she came twice before I finally filled her arse with my boiling spunk.