you don't know). Also, this is my first smut- fic. If you don't like sex and sex-based humor, do NOT read this! Chapter Fifteen Summary: The gang goes to Ginny's birthday party where Harry and Hermione get their revenge on the twins! Harry was in an incredible amount of pain. The last thing he remembered before blacking out was Hermione fainting and unexpectedly head-butting 'Harry, Jr.' and his luggage. As every bloke will tell you; any blow to the genitals is unbelievably