Slightly canon-divergent Magic’s Promise AU. Instead of disguising himself as a simple minstrel getting molested in taverns, Vanyel disguises himself as a minstrel or bard to infiltrate Vedric’s household for a month or two to get information. (Let’s pretend he’s able to sufficiently shield himself so Vedric can’t sense his magic.) In the course of this disguise, Vanyel aka Valdir ends up seducing Vedric, and feels horrifically guilty and conflicted and dirty about it because the man looks just like older Tylendel but is also Really Evil.

Bonus dubcon points:
Instead of Vanyel seducing Vedric for information, Vedric comes onto Vanyel first. Vanyel is too scared not to go along with the seduction for fear of breaking his cover as a financially insecure minstrel/Bard

Double bonus dubcon points:
Creepy dirty talk from Vedric about how pretty and vulnerable Vanyel is, his mouth is more useful for sucking cock than singing, etc