I kind of figured what she had in store for me but I innocently asked her about it anyway, hoping she was just joking around. She just kind of chuckled and in no uncertain terms let me know that since she was stuck dealing with tampons, the least I could do was wear one as well to get a feel for what she was going through. There was no point arguing, so I mumbled a "thank you Mistress", and went back to the bathroom to shower and get ready for the beach. A little, ok a lot, of lube later and the tampon was resting comfortably inside me.
The rest of the day was rather uneventful but in a weird way I enjoyed having the tampon in me. Not so much for the physical feeling, but because it served as a constant reminder of just how submissive I've become to Miss H. It was a wonderful ego crusher, because every time I walked by some big buff dude I instantly felt inferior, a pathetic sissy with a tampon string hanging out of her ass. Each time I caught myself staring at a hot chick in a skimpy bikini, I kind of cringed, thinking about how they would laugh hysterically if they knew what I was doing for my Mistress.