-I don't get it. What is that costume?

-I'm, emmm... In the bdsm world I would be something between a sex toy and a pet.

-Sorry, a what?- Simon, Eric, Carol and I had attended a costume party. I didn't know  exactly who was the host. A friend's friend's friend or so. I didn't care, for being honest. A guy was asking me about my dress. His cheeks redened when I mentioned the word “sex”.

For the first time I was wearing the chastity belt outside my clothes, which consisted on a single latex catsuit. It was a very dark tone of brown, to the point that it seemed black from a distance. It covered everything but my hands, feet and face. It had two short zippers at my crotch and ass and one more from the waist at my back going up to my neck. This last one was held in place by my brown dog collar that was padlocked, just for protection. The one on my crotch was also open to let the egg's cable pass. From the collar's D ring hung an iron dog leash with leather handle along with the tag with my name. A pair of high heeled shoes, and my four leathers cuffs, with a padlock each, reinforced the image. Also I was wearing in plain view a brand new leather bra, a small padlock securing it at my back. A small vertical slit on each cup, aligned to two more small slits on the catsuit, let pass a light chain that had been fitted to hung from the U bars on my nipples. I was going to need my Mistress¡ help to break free of all that parafernalia. The last element was what concerned me more. On my waist I weared a black leather belt pouch that contained the controller device. The zipper was leaving a gap open to let pass the cable that was connected to the front of my chastity plate. During five seconds per minute the egg buzzed at a random intensity keeping me very entertained. It had been like that for hours, I wondered how much battery had left.

-Means that, among other things, my sexual life is strictly controlled by another person, who would be my owner.- I pointed at the belt.- My pleasure is subordinated to my owner's too. Ummm...- The egg buzzed suddenly at 4/5 of intensity. I stopped talking and bit my lower lip.- For this person my opinion wouldn't matter much.- I managed to say after a pause.

-What is that sound? Like a buzz.

-My phone is in my pouch.- That was true actually, except that wasn't the source of the sound.

-My pet! You are here.- Carol, dressed as a slutty cowgirl, wearing a shirt that covered her breasts and not much more, and a short skirt clearly unfit to ride a horse, came to rescue me from that awkward conversation.- Sorry, is my pet bothering you?- She held the leash with one hand and squeezed my buttock cheerfuly with the other.

-No, eh...- He tried to say. The bulge on his crotch hinted that he was not in a position for complex elucubrations.

-We have to go, dear.- She both pulled on the leash and pushed on my ass and we left the poor guy alone.- Seeing you with that guy has inspired me.- She said once we were alone.- I'll tell you in a few days, I have to buy something. But, now, the toilet.

-So..., do you think that Bossy would like to see me like this? This costume is his idea.

-Yeah, sure, she would love it.

-She?

-Or he.

-Ok...- I wondered how long would she keep the pretense.

She led me by my neck to the bathroom. Along the way we got quite a lot chuckles and a pair of dropped jaws. She sat on the toilet to do her thing. Grabbing my buttocks she brought me closer to her until she placed her ear over my chastity belt's crotch plate.

-Looking for something?

-Shush.- We waited for a moment in silence. I grunted when the egg started again at middle intensity.- It's there, my baby.- She joked.

-Kicks hard sometimes.- I followed with the joke.

After the change of rules, a pair of weeks earlier, my life had been a bit less comfortable but much more fun. Every night I slept lying face down with the electronic cuffs binding my wrists and ankles at my back, gagged and blinfolded. My collar had to be padlocked to a chain, which had to be padlocked to the bedframe, the keys on the nighstand, within reach, once the electronic cuffs allowed me to. During a period of an hour per night the egg might or might not tease me at a random intensity and for a random amount of time, a minute minimum. Carol had warned me that the probability of having a high intensity for a long period was very low but it was there.

At mornings I woke up with the sound of the clock alarm. Carol had made me sync it up with the controller's device hour. Just as the clock sounded, the egg teased me for twenty five seconds, five for every level of intensity. Immediately after the cuffs opened.

Then I musted disconnect the controler from the wall, and put it my belt pouch. I was supposed to carry it for another hour during which I used to take breakfast and do my jogging routine.

Some days the egg just buzzed for a few minutes at a soft intensity. Other days it didn't work at all. Once day it buzzed for fifteen minutes while I was on the street. As mistress checked the watch I weared when jogging, I had to do my everyday routine with that thing driving me nuts. I stopped to try to calm down twice, the second I enjoyed a powerful orgasm.

One night happened something amazing. I was reading a book in the bed. During five minutes the intensity changed from 1/5 to 5/5 and back to 1/5 every two seconds passing through all the other levels. It felt as if someone were fucking me, I guessed, according to what I had read in magazines and books. As if something entered and left me. Grinding my shielded crotch against the border of the mattres I enjoyed a powerful orgasm.

Finally came the day were mistress told me her new idea, three days after the costume party. She put a bag on the couch and showed me its content. A strap on plastic dildo that ressembled a real one except a bit shorter attached to a leather harness. On the inside it had another much smaller penis. In the bag there was also a bottle of lube and a pear shaped steel object, with flat and rounded plastic base and a cable hanging from it. She took off her trousers and panties. My heart stopped for a second.

-Here it goes. I think that your ass should get more involved in our games. I don't know exactly how yet, but, for example, we could invite a few guys to..., you know.- My hands started to shake, she grabbed them and kissed them softly.- Of course I'm not going to force you.- I relaxed a bit.- The thing is that whether it happens or not, I'm going first. So today I'm going to take your anal virginity, with your permission, and depending on what you feel we will decide what happens next. If you are ok with the idea then cinch this thing tightly on my waist an let's go to your bedroom.

-I don't want a stranger in my ass.- I hesitated. She didn't say more, just waited. She was offering to take my anal virginity. That was all for the moment.- Why the rush?

-Because I want an honest answer.

Sure. She wanted to catch me off guard. So be it. I shrugged my shoulders, cinched the strap on, and took her hand to guide her to my bedroom. Then I climbed on the bed, lowered my pijama pants and got on all fours. She lubbed thoroughly the dildo and placed its tip at my entrance.

-Careful, Mistress, please.

-Of course, dear. You know how much I love you.- She grabbed my hips and pushed a bit. The tip entered me.- You are my best friend.- She pushed a bit more and the fake glans entered me fully.- I would never hurt you.- She entered a bit more.- Never.- She took it out and entered again, and again once more. Three thrusts counted as sex, I guessed.- But I want you to be mine.- With a quick motion she entered me completely. I gasped for the surprise. I knew that it was complete because I was feeling the leather on my cheeks.- The more mine you are, the more I love you.- She left partially and entered again completely.- And I want more.- She left almost completely so the glans was just at my entrance.

-And what are you waiting for, Mistress? Make me more yours.- I blurted out not sure about where was that coming from, but still corroborating every word. How could I know that anal sex could be so pleasant. I was expecting a world of pain. It turned out that the painful part would come after the sexual bliss.

-I will.- With a thrust she entered me completely. I fell on the matress and she fell over me. She hugged me and I grabbed her hands, the dildo deep inside me.- There is more. Listen.- I nodded.- You are thirty four years old, in six years you will be forty. If you haven't found a suitable man before your birthday, where suitable means that he is going to need my approval, I'm taking you for myself. Rest assured that I'm not going make things easy for him, I warn you. So, if you haven't found a man, I'm going to take your virginity with this very dildo, and you will be mine forever. Forever means forever. Understood?- I nodded, she was still inside me.- Do you agree with all this?

-Yes.- I whispered. Six years was a lot of time.

-Yes, what, darling?

-Yes, Mistress. You may claim my pussy for yourself under those circumstances. Now, please, get out, it hurts.

I felt relieved when she left my arse. It had started to hurt. While I was resting from that intense experience she showed me the pear. Connecting the pear to the controller, and the controller to the laptop she tiped something. The pear opened like a flower and reached a width of two inches, around three times wider.

-This thing goes every morning up your ass. It will activate along with the egg, growing to a random size. This is the max. When the egg stops, the pear gets narrower. Yes?- I shrugged my shoulders.- No, don't do that. Yes, or not?- I nodded.- Sure?- She tickled me on the sides.- Yes?- I nodded and smiled.- Cool.

-Why now? Today?

-Well, the other day, when I saw you with that guy I felt a bit jealous and...

-Jealous? Very funny...- I interrupter her.- No, I mean the ass thing.

-Oh? The next month Simon and I are having our wedding anniversary. Five years. I've planned a special day.

-My ass?

-Not yours, ours. You and me. Only if you are up to it. I'm not going to force you, of course.- She saw puzzlement on my face.- Your pussy is going to be locked, obviously. Because is mine!- She jocked and tickled me again.- Now, one last thing.

She went to the closet and grabbed a pair of leather cuffs and a padlock. She made me turn around, and stretch my arms above my head. Then she padlocked my wrists together with the chain that usually went to my neck, after making a pair of loops around my arms. To my astonishment she opened the padlock of my chastity belt.

-Mistress, what?

-Don't move.- She went to the bathroom and cleaned the egg, which had been buried inside me for two weeks, the last time she had cleaned it. Whenever she freed me from that prison my hands musted be chained, so I wouldn't touch my clit. When she came back I thought that she was going to lock me again. Instead she opened my legs
and knelt between them.

-What are you doing?- I was both scared and inexplicably excited.

-I'm paying a debt.

Just like that she went down on me. She did, more or less, the same I used to do, but much slower at first, and gradually increasing the rhythm. I yelped when she kissed my clit. No one had done that ever. I moaned lowdly when she licked my labia and almost passed out when she entered me with her tongue. It hurt when she inserted a second finger, also the first time ever. The last time, more than ten years ago, she inserted only one and only for a few seconds. When she nibbled my clit I orgasmed so hard that I actually passed out.