Ever since his defeat, Tirek has been more or less used to the absolutely dull and soul-draining monotony of his imprisonment.

He certainly wasn't expecting visitors at any point during his internment, and definitely not Twilight Sparkle's little stoodge.

M/M slash. Canon divergence, takes place before Season 8. Slow burn, sorta kinda enemies to friends to lovers, redemption arc(?), rare pairing.