I let go of her clit and then started licking her pussy and clit. She was just letting out little squeaks and her ass was starting to relax again, when the second orgasm hit and if anything, it was more powerful than the first one. I stopped licking and about 5 minutes later, was finally able to get my hand back out of her ass.
I needed to get out of there. If I stayed around any longer I would be fucking her. Up to this point, she still thought that mom was doing this to her. I decided I was just going to put her back the way I had found her originally. If mom found her before she got loose, she probably wouldn’t notice anything had happened. Of course if my sister thanked mom for what I had done to her today, they both would be pretty confused. I picked up the dildo gag and put the cock up to her mouth. She sucked it in and I was easily able to refasten the straps that held it in place. I removed the clamp that had been holding back her pee and saw it start flowing thru the tube again. She started swallowing for a bit and then it stopped.
I looked around and found the 18 inch, double ended dildo and started shoving it back into her ass. It went in so easily that I was afraid that it might go in all the way and disappear. When there was about 4 inches left sticking out, it started getting hard to push in and I stopped. I left it like that and then found some tissue to wipe up all the lube that was still puddled around her ass hole. My arm was a mess and I went into the bathroom and washed it off.
There was still one problem, the handcuffs on her right arm. If I let her out, she could pull on the rope and release herself. I didn’t want her to be able to look out the window and see me driving off. Then I remembered that she would not be able to get to the key for the other hand if I put it back on the dresser. If she let herself loose, she would still have to wait for mom to get home before she could get off the bed. I put the lube bottle back on the nightstand where I had found it (I could not help that there was a bunch missing), then I unlocked the right handcuff. She immediately reached for the rope and I slapped her hand. She yanked it back, then went for the rope again. When I slapped it again, she finally got the message that I wanted her to stay put. I gently grabbed her wrist and placed her hand back up to her pussy. She started rubbing it again and I took a final look around the room. Everything seemed to be in place except for the extra bit of dildo sticking up from her ass and the missing lube.
I took the dirty tissues and flushed them down the toilet. I then went down to the kitchen to make sure that I got rid of any trace that I had been there. I grabbed the glass and plate that I had used and washed them. I had put the glass away and was drying off the plate when I heard a noise behind me.
I turned around and there was my sister, totally nude and smiling at me. Holly shit, did she look nice.
“Did you have fun playing with me today?”
I was lost. Here was the brat, I had pissed in her mouth and fisted her ass and she wanted know if I had a good time. “Did you know it was me the whole time?” I asked.
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