At their Mercy

My new Mistress , Nicky , never ceases to amaze me . Serving her is a challege that I look forward to. During our last session I was lying helpless with my back to the floor and my hands tied to my ankles , with a leash around my genitals . "You are coming along fine in your slut training but you have much to learn " and with those words she ordered another Mistress called Vicky to begin the days trials. Towering above my helpless body , Vicky stripped off her panties and let them fall on my face. She then reached around to grab a bowl. Squatting on the bowl she then proceeded to empty her bladder , she then raised her body and reached out for a funnel . I was filled with both fear and excitement , Laughing aloud Vicky proclaimed , "Relax and enjoy because you have no choice , you can either submit and drink of my nectar or you can suffer and choke during the process " And with those words Nicky pulled hard on the leash around my genitals knowing that I would open my mouth in pain , and at that instant they placed the funnel in my mouth . The warm urine filled my mouth and I swallowed so as not to choke . "You performed well " shouted Nicky , better then expected and with those words she bent over my body and placed Nickies panties in my mouth , The two Mistresses then turned me around in a doggy position and took turns in penetrating me with their formidable strapons. With my hands lashed to my ankles and my mouth gagged with Vickies underwear , I was at their complete mercy. While one Mistress was straddling my rear the other had her feet in front of my face . I slowly realized that not only did I feel like a slut but I was truly being transformed into one.