7cc7400a_sts_and_Rewards___Wowhead_News__Quest_Achievement
[Zone] Twilight Highlands [Description] You're tasked with bringing about a political marriage between subsets of the Wildhammer clans, but quickly learn that Fanny Thundermar has a mind of her own and awesome personality. From turning down your escort aid to enthusiastically talking about the physical attributes of her groom, Fanny has a lot of sass and makes the traditional 'wedding planning' quests fun. The final quest has a surprise twist, but Words and Music By..., in which you get to write your own wedding song, is a fun highlight too! [Quest/Achievement] 
My Sister, Fanny
Questing in Cataclysm: The Best Quests and Rewards - Wowhead News
Quest/Achievement