"If I had," he purrs against the underside of her jaw, "you wouldn't still be able to remember the word 'assertion', but thank you."

(It's only half a joke to him. From what incredibly little Sherlock knows firsthand about sex and the unfortunately larger amount he knows secondhand, he's reasonably sure that a practiced or singularly talented lover should be able to knock the vocabulary right out of their partner's head.)

His other hand moves down to the small of her back, fingertips sliding along the waistband of her knickers. Carefully he starts trying to guide her down next to him, so they can both sprawl out. So he can see her better and touch her more.