Hermione sat up a little, she watched Ginny pull her hand away from where it was in her knickers. She knew how it felt to have to touch yourself... even though she was pretty sure Ginny had had more than her share of experiance.
Cocking her head to the side, she blushed in spite of herself, "so do you," she told Ginny, looking at Harry and grinning at his suggestion that Gin come in and close the door. She had read about threesomes and a little tingle ran through her at the idea of her and Ginny actually touching and kissing each other, Harry watching them...