How Could I Say No?

I thought I was just going out with some girlfriends, I thought I was just going home with another girl like me. I was wasted so we got a hotel near the club and I passed out right on the floor, un-showered and completely unprepared for what I was going to wake up to. Looks like my girlfriends had abandoned me with the girl I had been flirting with all night, but when I awoke all tied up and unable to talk I was in shock. I looked around and the only person I could see was Mariana. She was staring intently at me, holding something in her hand. When I saw that shemale surprise I was shocked. I was half turned on cuz we all know what a nasty submissive whore I am, and half scared because this thing was a monster. She came up and whispered in my ear and asked me if I wanted to go on that date I was asking her about so much last night. I whimpered cuz I could feel the head of her cock spreading my pussy lips. I was already wet; “I take that as a yes” she said as she felt my pussy dripping… I wanted it so bad, how could I say no?