Sister raped, I did the revenge part for her, let her watch

My sis was 17 at the time, she got too drunk and in a houseparty a guy also 17 raped her. She was screaming and no one came to help. She was locked in a bedroom and after the rape was complete she just laid there. He did it to her 2 more times before he left about 3am. She staggered home, not drunk anymore just sore, she was a virgin. I got her the morning after pill so she didn't have to endure a potential pregnancy. It took a week but I got all the information from her. What house, who lived there, who was the guy, where he lived?

It took a couple of months making friends with some of the older guys at the house, then meeting the 17 year old friend. I got to know him, we hung out a bit, I'd get him some smoke and drink sometimes. I was having a house party I told him. It was true, my sis and I had lots of friends over and it was a lot of getting high and drunk. The rapist saw my sister and actually started to flirt with her again. He wanted to know if there was an empty bedroom upstairs. She said yes and took him up after signaling me first. When they got in, I watched from the closet. He pulled off her dress, really roughly, she gave a small shriek, then he yanked off her bra and her panties. My sister, the girl from whom this rapist raped and took her virginity was a hot girl, totally hot. C cup boobs, about 5ft. 6in tall, firm body, wonderful legs and ass, and black hair to her mid back and a nice black bush on her pussy. Since I helped her with her cuts and bruises after her rape I'd seen her naked. We suspected this would happen. He pushed her down, once his pants were off, and spread her legs. His cock in her, starting to pump into my sisters pussy, I came out and put the ether rag across his nose and mouth. He went out. We pushed him off and out of her, I saw her pretty pussy opened up from his cock. I rolled him over and the two of us tied him up, face down, naked on the the bed. I went downstairs and got the guys.

What mr. rapist didn't realize was that most of the group were lesbians and gay guys. I had 8 gay guys in the bedrooom. My sister naked sat next to him on the bed and woke him up. He looked at her tits and smiled, then realized he was tied and couldn't move. She put a gag on him so all we heard were mumbles. Some sounded like threats, some questions, then panic. The first guy, who had a really really thick cock about 7 inches long but waaaaaay too thick, was greasing up his cock in front of the rapist, while my sister was lubing up his asshole. Shoving four fingers into him without mercy she lubed up his insides to muffled screams. His eyes went wide when he felt the big thick cock and the guy it was attached to, get on top of him. "Oh shit this is gonna be nice" said the guy. Screams, and tears from rapist eyes as the first guy sank it in all the way in one quick stroke. My sister still naked on the bed, told him "That was the way you shoved your cock into my virgin twat you asshole". Constant screaming and moaning, crying, and Mr. thickcock came up his ass. You should have seen the wide open eyes on that one. He knew what happened. My sister again "Just like you shot off inside of me you faggot".

After all 8 of the guys fucked him twice, my sister strapped on a dildo, the kind in a harness that lesbians use on each other and fucked him solid for 30 minutes. She was whispering the same shit into his ear as he did into hers when he raped her. So much cum was on the mattress, his ass was opened up about an inch and a half, he couldn't close it anymore. I jacked off, and shot on his face. I went up and showed him the videos and pictures we had of his "enjoying" his gay gangbang. Then told him to keep quiet or I'd cut his cock off. I ungagged him, and told him what he did, that it was my sister. Now he can let it go, or not. It's up to him. He was crying again and said that he'd let it go. I told him the only way to prove it was if he stayed the night with my sister. He was willing, though not the way he might have wanted. He was untied, but she came with her strapon. I slept on a couch in the same room, and she fucked him three times during the night. In the morning she went to her room and I warned him again and showed him all the pictures and videos. I made him put on one of my sisters pairs of panties, a bra, one of her skirts and a tee shirt to leave. Before the left, at the door I told him to bend over, pull his panties down and spread so we could see his new pussy.

My sister fucked the shit out of me all day that day, thanking me all the time for getting revenge on him.