Luna nodded her head, taking in what Hermione said as she continued to look at the knicker covered member. She wondered what it was like and felt a strange urge to touch it, though she held herself back. She was always drawn to curiosities, and this certainly fit the bill.
Luna was broken from her staring as Hermione groaned and looked so ashamed. She wanted to do something to help her friend out. "It's okay, Hermione." she said, placing a hand on the girl's shoulder. "There's nothing to be embarrassed about."
Nodding again as Hermione continued, Luna kept her hand on the girl's arm and let her gaze fall back to the bulge under Hermione's skirt. She desperately wanted to help her friend somehow. And she was also getting increasingly more randy the longer they were in this enclosed space. "Do you...do you want me to help you with that?" she questioned about Hermione's randiness. She looked up form the bulge to meet the older girl's eyes.