You have always had the hots for your best friends girlfriend so when you walk in on her in the bathroom cleaning in a small grey dress you decide to get a good look at her ass before you let her know that you are there! When she bends over you can see that she is wearing a thong which shows off her sexy ass cheeks, she finally turns around and sees you staring at her and she soon figures out why you have come round when her boyfriend is out!