It was getting out of control. In the past week, Beth had gone from being my sexual partner to being an extreme dominant who wanted me to be her "lesbian slut." I had never even thought about being feminized before. In the heat of the moment, I could be horny as fuck and enjoy it, but after I had cum, I always felt ashamed and overwhelmed.
Earlier today, Beth had tied me down, shared me with Vanessa, our neighbour, and made me cum all over the new "girly outfit" she had bought me. As we finished, she told me to get cleaned up for the next round, promising that we would be including a new partner.
My girly outfit was still in the laundry when Beth came and found me. I think she could tell I was still upset, because she gave me a big hug and kiss. "Don't worry about the laundry not being done, honey. I made sure we have extra gear. Here is a present."
I opened the bag she handed me and pulled out something that was semi-sheer and almost a neon pink. I had bought something like this for her years ago. That's how I knew it was called a baby doll nighty. It had spaghetti straps and didn't look to be long enough to entirely cover everything. My first thought was "No way I'm wearing this," but I could feel myself starting to get hard.
So I asked, "May I put it on, mistress?"
She smiled gently but firmly. "I would like that."
I liked how she was expressing some warmth instead of just being hard and cruel as she had been this past week. Maybe if I just did as I was told and kept her happy, she would keep showing this softer side?
I got undressed and removed the tags from my new nighty. I pulled it over my head and felt the satin slide down my body. Beth smiled at me and gave me another warm hug. As our bodies were up against each other, I became fully erect. She pulled back and held me by the shoulders as she looked down my body. "Close your eyes, sweetie."
I felt so happy as I closed my eyes. Then her knee hit my balls. It wasn't a super-hard hit, but a knee to the balls doesn't need to be. It took everything I had to stay standing. I straightened back up and felt tears stinging my eyes. "Lie on the bed, slut!"
She pulled the ties from the sex box and tied me down hard so I could barely move. She stood back to admire me. "We won't use the blindfold this time, slut. I want you to see what is happening. Time to call everyone in."
She gave my balls a tap and then left the room. I was left lying there in my pretty nighty, where I would be unable to resist anyone who might walk in. After close to an hour, I could hear voices downstairs, then multiple pairs of feet coming up the stairs.