It wasn't that no one had thought to teach him things; Stephen Strange just didn't engage in sex like it was going out of style. When you got to be his age, sex's place of importance drastically lowers. He'd spent most of his adult life being a pompous ass before his accident, then after becoming a sorcerer, he spent all of his time deal with supernatural phenomena. "I wouldn't mind. As you said, we have to stick together," and he gave her a soft smile. "Though I pick the place next time."