I lifted her up into the air, grabbing just below her gorgeous ass, and tackled her onto the bed. I pulled her sweatpants off of her, revealing a sexy...black thong. She grabbed the bottom of my shirt and ripped it off my head. I moved back for a second, as I admired my best friends adorable little sister in just a black bra and black thong, and it was the most beautiful sight I have ever seen. I slowly moved up her body, our bare bellys touching, sending chills down my spine. I slowly kissed. As the tentacles surrounding and fucking Me began to soften she twisted her body around, wrapping them around her nearly naked body. With the tentacle wrapped and trapped around her she began rocking her slender body against them, using her muscle control to keep them hard inside of her, fucking herself against them, drawing out another orgasm from them. Her small pussy slid wetly up and down the shaft inside of her as she contracted and relaxed her ass over and over again, stimulating the. Shortly after the 'incident,' my step-daughter, having just witnessed Kristina and I have sex, absolutely shocked me, when she said to me, "I want you to do it with me too."I could not believe my own teenage step-daughter would even say something like that. Kristina, obviously knew that was not the case, immediately saying, "that's fucking hot. I wanna see that," and then walked out of the room.I stared at my teenage step-daughter, and she nodded to me. I walked up to her, and slowly put my. We talked some more about the weather and whatever else my friend wanted to talk about, but the whole time his buddies just stared. Finally, my friend asked if I could show him and his friends more of my body, since I was covering most of the vital areas. I was feeling more relaxed with the situation, and knowing that they could turn this situation into anything they really wanted at any time I agreed. I put my arm down showing off my breasts with stiff nipples pointing out, this got some.