Aww, I really like this! Draco was smart to go to his mother for help, she came up with the perfect thing. I wonder what the conversation between her and Lucius went like. LOL!

And of course Harry knew Draco was there, watching. Because he's always watching Draco. Harry's mini party was very sweet - loved Hagrid bringing the cake! - and Draco's offer to help initiate Harry in the ways of boy sexytimes was really good! Happy birthday indeed! Well done!