does Harry lean over her shoulder to look at the book?

 Harry leans over her shoulder and glances at the spell book in her hands. He is suddenly aware of the smell of her hair and how it trails down her back. Not quite sure why he has the sudden urge to run his fingers through it. He reaches forward the let it run through his hands. It was soft and cool against his hands. The memory of how it had played along his skin when she was sucking him flashed through his body.

 Hermonie was saying something to him. ".....you know if we don't we could be in serious trouble. Harry? Harry!"

 Her back was still to him, otherwise she would have known that magic was the farthest thing from his mind at the time. He bent lower and nuzzled at her neck at kissed the fine downy hair there.

  Hermonie tensed at his touch at first and the soft warm sensation started to spread down her body. 

 "H-H-arry? You need to stop. If we don't have are minds fully on what we are doing then we could be in for a nasty surprise." With that she flopped herself forward onto her stomach.

 Harry wasn't fooled. She was acting like she wanted to study the book, but a pale flush of red had started to run down her back. Harry studied her heart shaped ass for a minute and licked his lips. The taste of her still filled his mouth and he wanted more.

  Her legs were spread out slightly and  all of a sudden he was sure of himself. The smell of her sex was strong and getting stronger. Harry ran his hands up her legs and over her ass. She made a small sound in her throat but didn't move. He spread her legs a little and started kneading her ass and carressing her inner thighs.

 "What ingredients did you use in the last spell?" Harry asked her casually. She stiffened under his hands and for a moment didn't say anything.

   "Clove stalk, crane's tooth, six leaves of palm,..............and two pieces of Karls twine." She said it all matter-of-factly. Except for that slight pause in the middle. Harry wondered about that. Hermonie took her spells seriously. Too much to his way of thinking. On the same hand he was almost positive she was holding something back. Harry gripped her ass cheeks tightly and she let out one of those small sounds again.