Caught and subdued

So there I was, caught by my older sister hiding under her bed, wearing her little black girdle. I had been raiding her hamper for a little while, enjoying the feeling of dressing in some of her stuff. I guess I got caught up in enjoying dressing and lost track of time. I loved the feeling of that little lack girdle, so tight and sexy against my butt. I had slipped it on in her bedroom when I heard her downstairs. I couldn't cross the hallway back to my room without being seen so I hid under her bed. When she came up to her room, she knew something was different, like she could smell me. She looked under her bed. Caught!!! Come on out of there you perv! I slowly & ashamedly emerged. As I was standing up, flash, flash, flash as she snapped a few picks. What are you doing I asked? So you like to dress up in my clothes? she asked. I was just curious - I lied. Well, you'll get your chance, unless you want everyone to see these pics. Now get out of here you perv. I took off the girdle and stole back to my room so my parents did not see me. I felt terrible and afraid. What was she going to do with those pics? Blackmail me?
So a few days later when my parents were out she came to me. So you want to dress up little gurl? she said to me. NO! I was just curious, I said. Bullshit, she said. You are going to be my little slave girl! Do you like that? she asked. Please, I asked my sister. It's not like that. Get your ass in my room and strip! she said. I was so shocked by her behavior. I obeyed her and entered her room. On the bed was an outfit she had laid out. Now, get dressed! I put on the garter belt and slid the stockings up my silky shaved legs, it was so sexy, and could not deny it. As I attached the garters my clit began to grow. Then I slid the panties up over my stockings and garter belt, my cock got so hard. The panties slid tight up the crack of my ass, It felt so hot! Yes, you like that, she cooed. Now finish getting dressed she said as she snapped some more pictures. I put on the sexy bra, sheer top, mini skirt, and high heels. I then had to go to her makeup table where she made up my face and put a sexy looking wig on me and proceeded to snap more photos. You look like a little slut she teased me. When I looked I had to admit, I did look a little hot. I couldn't believe it. You like it, don't you? she said. Why don't you cum over here and suck me you slut she said as she raised her skirt. What could I do??? I got down on my knees and lowered my head to my sister's juicy cunt. I was licking and sucking those lovely juices when I suddenly feel my short skirt being lifted over my ass and a pair of hands rubbing my stocking-covered thighs. What's going on? I said as he slapped my ass. I turned to see my sister's boyfriend's cock staring me in the face! Take it, I heard my sister say. Yeah, suck his cock sissy! Please don't make me do this I pleaded. I can't, I pleaded, but he was pushing the head of his cock against my lips. I instinctively opened my mouth and he stuck it in. Oh My God!!! I'm sucking my sister's boyfriend's cock and she is recording it. His thick hot cock grew in my mouth and I tasted his precum when she pulled me off and she laid back and let him fuck her. When they were done, she had me clean them up, both Now she wants to go on a double date with her boyfriend's friends. What outfit should I wear? I might have to give a blowjob What will I do! Give me a idea