Exploring My Guy Friend

"Woojin, you've really grown up so much. You're even taller now. You're all grown up." At that very moment, Haeyoon was drawing her friend completely naked. Just as they had agreed, without a single thread of clothing. Her gaze meticulously explored every inch of Woojin's body, while the lines she drew on the paper followed the path of her eyes. Her eyes and hands seemed to caress him simultaneously. "Don't move. Just stay still, will you?" Haeyoon tried her best to sound composed as she spoke to Woojin, who was sitting on a chair, posing for her. However, her pupils were trembling uncontrollably. Woojin remained perfectly still, apart from the slow rise and fall of his breathing. Except for one particular part of his body.