You know that Mistress has a world-class collection of strapons because she's made you her bitch more times than you can count. When she tells you that you'll be "receiving something special" today your mid pictures a new attachment. As you're pleasuring her pussy you hear the door creaking open and she lifts your head from your appointed playground and tells you to look behind you.
As the big-dicked shemale crawls onto the bed and positions him/herself behind you, Mistress pulls your head back between your legs and tells you to get busy.....and ready.......
What's a dutiful, pussy-eating Slave gonna do?