Me being a pet

As you all know i am a bitch of my mistress "sissychick".
This incident happen recently during my training of being a little slut. So i was sitting right next to my mistress bed, like a loyal dog, still having anal plug inside my ass and my dog collar. It was the mark of me being my mistress slave. My legs were folded right underneath my ass, the floor was cold and i was all naked. My mistress was tired from fucking by 3 of her lovers all day, she was sl**ping still having cum all over her.
Her perfect little face makes me horny, i started to get hard again, it was 4rth time in last 2 hours. She was looking sexy as hell. I wanted to stroke myself very hard and move that anal plug which would have satisfied my quench, but my mistress have given me hard instructions not to touch or get fucked until she tells me to. But me being a greedy slut, i looked at the cum dripping from her cheek. That was all i needed, i moved forward and start licking it.ummmmmmmmmmm it was so yummy tempting my addiction of eating cum. See i have a reason behind sucking cock and getting fucked that is because i love the prize that i would get after, which is the tasty, delightful white syrup. I m such a dirty girl. I licked her face and ate all the cum. But she had plenty of it still left all over her. So i licked all her body, she was moaning throughout. It was like she loves it same as i do.
Than i turned her around because i didn't want to miss the main course i spread her ass cheeks wide and starting to eat cum from her ass, it was like i am in heaven.
i was eating it like a perfect whore, she was loving it. My ass was up in the air as i bend down to eat her. Suddenly i heard something behind me. And before i could realize anything that anal plug was pulled out of my butt and there was a big cock thrust inside me with one stroke. It was the most painful felling. tears rolled down from my eyes. Then i raise my head and see that it was a shemale one of my mistress's friend from last night.