My father re married when I was 15 years old after my Mom died from cancer. I sudently found myself living with a step mother and her 17 year old son. The first thing she did was preventing me from going out at night to hang out with other girls and boys. She said the streets was no place for a 15 year old girl. I sneaked out behind her back and she gave me a lectures when I came back. I figured a lecture was well worth sneaking out, so I kept doing it almost every night. My father was so in love with her, he gave her the freedom to punish me in whatever way she pleased. She began grounding me in my room and I kept slipping out the window anyway. I came home from school one day and she forced me to strip naked in the middle of the living room. she told me "if you want to sneak out you'll have to do it without clothes" Then I decovered she had also placed a pad lock on my bedroom door to keep me from getting at my clothes. I sundeltly found myself completly naked in the middle of the living room and would probably be forced to stay that way till bed time. I told her her son Mark would be walking in from school at any moment. I went cold when she told me "it was part of my punshiment" Just thinking I would soon be standing naked in front of Mark horrified. Then I heard the front door open and almost died when I saw Mark walk in with his friend Alan. "Mom why is Vivian naked" he asked while they both stood laughing and looking at me. "It's the only way to keep her off the streets" as she poked her head out the kitchen door. Even when she saw Mark had come home with his friend Alan, din't bother her at all. I fact I was shure she did it intentionally to make me feel ashamed and humiliate. When she walked out and saw me covering with my arms, she told me to take them away and forced me display every bit of myself. It was so overwhelmed with embarrassment standing there with both of them looking at my small boobies and my bare pussy, I could do nothing else but look up at the ceiling. The fact that they both were turned on and enjoyed themselve seeing me nude, made it even more humiliating. The next day and day after that one I suffered the same punishment. Then the feeling that Mark and Alan probably told other boys in school. I was pretty shure they did, because I felt like boys were stripping me with their eyes and probably thinking how would I look like naked.