Divertimento of Ye Werewolf

(AUish) After what was a lifetime ago, Sirius and Remus are settled into their way of life. Solace in each other was all they sought... at least until a third party started speaking its mind; Moony. What will happen if the werewolf's tastes aren't as domestic as Remus's heart was set on? What is going on with the newest version of a long-ago pupil and why is she so volatile now?