Lee was making some drinks and I told Elsa told she should fuck Lee with her big strapon and teach her to love being fucked with it. Elsa said that she was going to make Lee fuck her with the strapon and then they were going to fuck Lee's sister with the strapon. Elsa said that she was going to talk to Lee. Elsa came back and she opened her suitcase and got her strapon out and she told me to come to the living room in twenty minutes. I was listening to them and I clearly heard someone saying" fuck me harder" so I walked to the living room and Lee was fucking Elsa on the floor and I could see the strapon going in and out of my sister's pussy and she was telling Lee to fuck her faster. I went and stood next to Lee and my hard cock was right in front of Lee's mouth and when she looked at me l told her to suck me. She was sucking me and Elsa was fucking her pussy back to meet the strapon as Lee was fucking Elsa. I told Lee that I was going to hide in the closet and she was going to bring her sister there and Elsa was going to fuck her sister with the strapon and she was going to fuck her sister too. Lee said she would bring her in when her sister Marcy and they were going to lick her and teach her to like having her pussy licked by women. I took a chair into the closet and I sat down with the door open so I could watch anyone on the bed and after fifteen minutes the women came in and Elsa was kissing Marcy and Lee was behind her sister taking her dress off and when she was naked Elsa told her to lay down on the bed and Elsa began licking her pussy and Lee was sucking on her nipples and Elsa told Lee to lick the pussy of her sister and show her how to be a lesbian. Marcy looked up and Lee began licking her pussy and Elsa told Marcy to make her sister her own sex slave. Lee was licking her clit and she was moaning and Elsa told Marcy that she loved watching two sisters lick each other and she told Marcy that she had been fucking her brother since she was sixteen and she said that incest sex was the best ever. Elsa told Marcy that feeling her brother's cock slamming deep into her pussy was the most erotic thing she still does. She told Lee that it was her turn. Elsa was licking Marcy and I heard Marcy ask Lee if she was fucking her brother like she said. Lee told her sister that Elsa's brother Alex would be here in a couple minutes and then she could watch Elsa fuck her brother. Elsa got up on the bed and told Marcy to lick her pussy.