The window gives it away.

Tilly looked to the left of Carly, out the window. She loved the look of the landscape outside the window. The art room was one of her favorite rooms. Suddenly, she noticed she could see the canvas in the reflection. She also noticed Carly, who was crouched behind the canvas. While the reflection was definitely blurry, the all cream colored silhouette of Carly’s figure gave away that she wasn’t wearing a towel, or anything at all. Tilly smiled mischievously towards Carly.

“Oh that’s fine. We’re all girls, and besides. It’s not like you’re naked or anything.” She taunted, crossing her arms and leaning back against the wall. Tilly had come to the decision to exploit the situation as much as possible.

Carly stammered out “No, it’s all right. I like it back here anyway.” Carly shifted her position slightly, letting Tilly see what was barely an inch of her butt. Tilly barely contained a giggle. “Well I refuse to leave until you come out. Come on, we have to hurry.” Tilly said sarcastically. Watching Carly nervously dip her head in embarrassment filled Tilly with glee.