"John, I need you to seduce that security guard so I can sneak into the building," Sherlock tells his lover. "My skills at seducing women are a bit rusty," John admits. "You'll be fine," Sherlock encourages him. John walks up to the security guard and starts chatting her up. "You're awful at this," she laughs. "Yeah, well I'm bi and just got out of a relationship with a man so humor me," John says licking his lips. "What made you break up?" she asks. "He caught me staring at you." It works.