I felt my cock jerk as our skin made contact. I fondled her very gently on the outside of her Panties and every once in a while sliding my fingers bac... over the exposed lip. Her face revealed no reaction, so I decided to go all out and was prepared to take the fall if she woke up. I sneaked a finger in between the pussy lip and the hem of her panties and gently pushed my finger under the fabric. It was easier than I had dared to hope for, as the panties were very elastic. Still no reaction from. "Ummmm......Stuart?Earth to Stuart?The view must be really nice huh?"You heard your sister say playfully when she notices your eyes are glued to her chest.Your cheeks immediately turn the colour red when you suddenly realised what the heck you were doing as you try to play it cool."Well,when you were a sexy top like that,kind of"You sound lame even to yourself when the words left your mouth,as you stare rather awkwardly at your sister.Sarah,who now seems to be smiling from ear to ear,looks back. It seemed like you were feeling submissive, that you were thinking about submitting to me.”There it was. There was no avoiding the question any longer. Whatever I said was likely to change my relationship with Susanna forever. Hopefully, there would still be a relationship.“I don’t know, Susanna. I know that I’ve never felt at all submissive before, if anything I would have said that I had a dominant personality.“When you told me about being a dominatrix, I felt excited, I even felt myself. She handed me a cold can and said “take your time with that I just need to get out of this dress and get something comfortable on”. I nearly dropped the fucking can as she walked to the bedroom but managed to hold on and with trembling hands got it open and took a long gulp.“Could you give me a hand please?” the voice came from the bedroom. Still in a state of shock I went in and she said “I think the zips broken or something, I can’t move it, can you try please?” I was out of my depth! I’ve.