"Great, here we are for our aerobics, and, lol, I'm not in quite such a see-through leotard as last week's! But it is rather high cut, isn't it? Shiny, high cut, and very, very tight. Wow, it's actually kind of riding up into my pussy, and the thong is leaving very little to the imagination at the back. Thank God for my tights. They're not sheer too, are they? Today's class is all about flexibility. I'm going to move my legs as FAR APART AS POSSIBLE and just bounce... doesn't that feel great? Thrusting forwards and backwards... Now, we need to stretch our hamstrings. Let me just bend over right in front of you, and then open my legs to really deepen the stretch...mmmm, feels soooo good! Just gonna massage the back of my legs and butt to help - this is actually best done by a partner really. Urgh, now my leotard is seriously getting in the way. You wouldn't mind if I just slipped it off, would you? No of course not, exercising naked is perfectly natural! Hmmm, now you can see more of my musculature, we should probably repeat some of those exercises, shouldn't we? The bouncing, with legs apart, and the bending over right in front of you? And now that I'm nude, we should probably demonstrate some other exercises; ones which are so wonderful for stretching one's *internal* muscles. I happen to have a few toys, I mean pieces of WORKOUT EQUIPMENT, right here with me. Let me show you how wonderful it is for my body to be stretched from *within*!' Your naughty flexhibitionist aerobics instructor manages to flaunt her body in a dizzying number of obscenely provocative positions before introducing a butt plug bunny tail (it matched her leotard) and a clear silicone dildo that she rides in order to, in her words 'really get those endorphins PUMPING!' I'm afraid she also encourages you to do a rather unconventional physical workout as you watch her stretch...