Imagine your face shoved between two soft, warm buttcheeks; the skin squishing against your face like big mounds of fresh bread dough. Feel the butthole rub against the top of your nose; it twitches and pickers, the girl obviously embarrassed. You can already smell the slightly musky, earthy scent although you've not yet indulged yourself. The anus would gently stick to your skin from the small amount of sweat between her crack, but that would only make it so much better. Place your hands on those doughy cheeks and push your face further in and really take it all in with your senses.