Hermione and Ginny

She felt a cool hand sneaking its way down her underwear to join her own, felt soft hair brushing against her neck. It was Ginny, she could tell without turning around, and the fact that her best friend's little sister had added a finger to her pussy and placed her lips, full and so appetizing, against her neck, brought Hermione to herself, and she turned her head, staring up into Ginny's chocolate eyes. Ginny merely gave her a small smile and moved to kiss her on the mouth, and to Hermione's immense surprise, she'd never felt anything as wonderful.

She'd kissed boys before, and obviously she was completely attracted to them, as Harry and Ron going at it like a bunch of bloody rabbits has made her wetter than she had ever been, but Ginny was...different. She was silky and smelled like rain, and her eyes glowed with a certain...surety...that she'd never seen before.

Ginny removed her hand from Hermione's knickers, gesturing for her to follow her. Within seconds, it seemed, they were in Ginny's room, the door locked, and huddled onto the bed, kissing like mad. Hermione thought that it was just that, mad, but at that point, she was on fire, and somehow the thought that Harry and Ron were doing what she and Ginny were made the whole experience more satisfying.