Draco was sure that Fides would certainly kill him - or at least he really wanted to after all the messages going around. In fact, he had expected another message from Potter - and yes, one day he will actually start using Harry in his thoughts and words as well as his owls, but not yet - when he recognised Severus' handwriting.
He opened it with a little frown, and then snorted when he saw the message. Leave it to Potter to be the white knight, trying to rescue his sex life.
Instead of answering, and risking Fides' anger, Draco Apparated directly into Severus' bedroom. "I have not forgotten where the different rooms are in my house. I even remember where Faustus' is," he said as he toed off his shoes and sat at the foot of the bed. "I was not talking about our sex life. I was trying to learn about his."