This fic involves Harry and Draco having a secret relationship and at some point Harry gets invited to one of the Weasleys bachelor parties and he ends up getting a magical tattoo on his back. Draco is there under the Invisibility Cloak the whole time but Harry doesn't find out until later. After the party Draco and Harry have rough sex against the brick wall in the alley outside.
At the very end of the fic Draco and Harry with all of Harry's friends are sitting on the quidditch pitch watching the twins firework display. Followed by Draco and Harry having sex under the bleachers.