The sudden sensation of her mouth on the underside of him regains any loss the erection may have suffered prior to putting on the condom. Protection, while generally rather irritating, is far too important when it comes to Watson. He's not about to have her catch something because of his negligence.

He wraps an arm around her waist as she crawls up to kiss him. He pulls her close, focusing on the feel of her body next to him, the taste of her mouth.