Thongs

You stand in front of the large mirror in your bedroom, your cheeks flushed with shame. You're a shy, modest girl who's never worn such revealing underwear. Your friend had praised this "special" thong so much that you finally decided to try it. The thin scarlet fabric clings tightly to your skin in front, the thin strings cutting into your thighs. As soon as the back strip slides between your buttocks, it suddenly warms, comes to life, and transforms into a long, hot, incredibly wet tongue. It immediately presses against your soft skin and begins a slow, insistent lick between your buttocks, circling your anus. You shudder, your breath hitching. *What do you do next?