Bodyguard Comes in from the Back

I started working for Tina Kay two days ago, but she has already proven to be too much. I'm suppossed to be her bodyguard, and she is one difficult customer. Thankfully she is extremely easy to look at, and when we get back to her place for the night, her behavior changes... She decides to show me how grateful she is for all the work I do, and when it comes to butt sex, she offers her tushy up with the greatest of pleasures...