The pair were in the Room of Requirement. Hermione's need summoning up an empty hall. Harry wasn't happy to be the target of a transfiguration spell, but he wanted Hermione's goodwill. Besides, he could repay her with DADA homework. Ron had made an excuse, when Hermione had asked him.
An excuse Harry had accidentally undercut when he accepted Hermione's request. So, currently Ron was practising Quidditch, ably assisted by Ginny. Who'd promised to go easy on him, and even encourage him... if she could.
Harry's back pressed against the pillar, with nothing behind him to distract Hermione.
As he looked up, she was already starting to chant beneath her breath. Her wand tracing an intricate shape in the air. The wand faltered, and he felt the air crackle as the magic dissipated.
"I just need to concentrate and visualise it." She answered Harry's unspoken question.
"So..." Harry started awkwardly, "Can you tell me what you'll transfigure me into..."
"Oh, just something I can visualise..."
"Yeah... but what?"
Hermione continued as if she hadn't heard the question. "Something, I can feel, smell and experience."
Her cheeks were starting to redden, and Harry scowled at her. The awkward evasion collapsed.
"I'm trying to transfigure you into a bra." she admitted in a rush.
"Ready?" she asked sharply. Harry was still struggling to think of objections, or questions, but as she took on a duelling pose. He knew it was too late. Her lips moved silently, and her wand traced it's path through the air. Leaving a faint trail of gold speckles in it's path.
Shutting his eyes, as the blast headed straight for Harry. He could only feel it as his body twisted and turned. The sensation of falling, gripped Harry and his eyes snapped open... Or rather he could see again. It was an odd sensation, being aware, but mute. Having no ears, but still able to hear Hermione's excited squeak at her success. He spotted her give a little skipping hop.
As Harry hit the ground it was only a soft impact. He was unable to see himself, but wasn't sure he wanted to. It was only as Hermione picked him up, that his body responded. He felt Hermione's fingers explore his cups, the chest band, and the shoulder straps.
It was oddly erotic, and he wanted to protest, to squeal himself. But without a mouth, his groans, moans and sighs existed only inside his head.
"Looks a little big." she half-muttered to herself. A look of consternation on her face.