It's when he uses the word "safest" that it finally clicks with Molly why he's made these rules. His latest bender. He hasn't been tested yet. It causes that kernel of worry in the pit of her stomach that represents his drug addiction to grow.

She pushes it aside for now though and nods in agreement at his request.

"Would be easier if you sit up," she says as she pulls herself into a more seated position next to him and pushes the bed covers down and off of them. They're just making her hot and getting tangled around her legs. It's then she sees for the first time the visual proof that Sherlock Holmes is very much aroused right now. Aroused by her. Molly's mouth goes dry. As if his trousers weren't tight enough as it is. He must be terribly uncomfortable.