I... wow. That was gorgeous, and wonderful, and it had Lestranges and Regulus and Lucius being perfect. Mmmhmmm. Beautiful work, and I do believed you hit quite a fair number of my kinks solidly on the head - the shiny dagger, the Fenrir in chains with his teeth and his freakishness, and fucking hot brothers being forced together with Rabastan (dear, sweet, crazy Rabastan) managing to come out of it with so much control. I honestly have no words to describe my glee... you should definitely explore the dark side more often.
and here's the physcobabble: yay, Lucius pwns! Rabastan has a dagger! Blood, sex, incest and Regulus being pretty and yummy and so very, very uncomfortable that I wanna squeeze him. Rab is a maniac, and I adore him... and Rod knows he wants more, don't you mate? Nice, nice, nice, nice, oh-so-fucking-nice!