Abroad studies always fantasized me since when I am concerned with my studies for the amount of freedom that one my experience living away from the family. So, does sex fantisized me like nothing else. However, I am not that attracted to others- men or women but for myself. I like playing with my body. When I left home and started sharing a room with another girl in abroad, my fantisy came into real. She was actually a lesbian.Another thing which was similar between us is the feeling of pleasure in pain. generally, she used to wear very short, tight and revealing clothes which I was always jealous of. The first one month passed. One day, she asked me to try her clothes. I never wore skirt when I was in home. She gave me exactly 6 inch long skirt and that too was very tight. The top was so low that only my nipples were covered. As for my slender built and perfect figure the dress looked great on me.But when I removed those hher skirt tore alittle from a side. She then gave me an angry look. I said sorry the whole day. Lastly, at night, she said, " You tore my dress. I am not angry. Even though, we being a roommate should respect eachother and be in discipline, isn't it?" I replied, yes. She then said," then I need to punish you for what you did today. You can also punish me if I do the same." I hesitatedly said, yes. She then ordered me to wear the same skirt and bend holding my ankles. I was so confused but I did what she ordered. She took her hair brush and spanked 5 times in each of my butt cheeks. When I raise my butt was so burning. I slept quietly that night. Next morning, she spilled her coffee in my pant. She said sorry but I remembered and told her about the discipline and punishment. She then bend down in my position last night. I spanked her hard in each check 5 times but I didn't hurried. I liked the feeling of spanking and getting spanked since then. That vary evening, she came to me for a talk. She purposed to make a rule book and punishment according to offense. It really made me horny. I agreed and we though every possible offense and similar punishment. Our punishment mostly were breast and bare bottom spanking , pussy spanking, breast pumping, clamping, and rope binding. She had almost all things for those and hence I felt like her last night punishment thing was preplaned. Since I was enjoying the feeling, I was happy. One of the best rule was, every sunday we had to spank eachother. We had to share same bedroom and bed which is our personal secret room and we werenot allowed to wear any clothes in there. And on a top of that, I had to discard all my dresses as there was a rule that atleast cleavage should be seen. The very next evening I was ordered for a punishment. I wondered and later found out that I haven't replaced my dresses with the new ones. It was severe offense in our rule book. So, I was to get a good spanking. As she ordered, I get undressed.She first read my punishment- for top malfunction 30 spank in breast, for bottom malfunction-60 on bare butt and 10 in pussy and I was to pump my breast 2 hr in the morning and 4 hr in the evening for 10 days with 3 breast enhancement syringe in each breast. My breast size was 34B which she never liked. So, She started with my butt. I bent and grabbed my ankles, she hit me with a stiff stick 20 times. She then ordered me to stand and put my hands over the head. She then hit me with a leather belt by folding it half. It hurted so much and if came continuously upto 20 hits. She then asked me to relax for sometimes. she then brought another spanking object which was made of leather but was so heavy and flexible. Unlike before, she ordered me to lay flat on the floor. I was scared but I did. She touched the object in my butt, bounced in a wave like motion for sometimes very softly and suddenly it came so hard. I could feel my butt bounching and it hurted. it came to me the second time more harder and continously upto 10 times,and when she stopped I was all in tears and my butt was like bouncing up and down. Inspecting my butt she said my remaining 10 hits will be over if I put a butt plug which I agreed and hence she inserted a plug inside the hole. Now, it was my boobs. She took a short whip which looked heavy and hit my each breast 10 times. I saw a faint marks in my tits. she again took a belt and start hitting the underside of breast each 10 times. And lastly,a flogger. Finally, she laid me in the floor again but facing upward and raised my legs and parted. she blew sharp 5 whips and only exactly was targetted in my clitoris. I was trembling in orgasm. She then asked if I need more in that area. I was in such a pleasure that I was never, I said yes. Then, she targeted all the five hits exactly in my clit. I fainted in pleasure. Next morning, she said that my breast is not ready for the pump that mornign so I can start later evening. That day she gave her clothes to wear. It was tight but little open in neck to cover my marks and a skirt. I was so shy but managed my day. That evening she got a hand pump and watched my pumping continously for 4 hrs. She wouldn't let me stop when my breast is fully stretched to the cup of the pump but only when my nipples get into the pipe and leave there for 5 minutes. It hurt but I liked it. From the next day, she injected me with some liquid in my breast in alternate days. Our spanking continued ever since and within 1 month my breast size is 34D and its round. I also spank her these days but I mostly tie her huge tits tight till its dark and then play with it till she beg. I then order her to lick my pussy till orgasm to release her. This way we both are enjoying our life.