Prompt: He married his (ex) wife being a virgin, now he's 50 (or any age you want over that) and dating a man for the first time. And he's just about to discover the joys of having a prostate!
Suggested Characters/Pairings: Harry/Draco, Harry/Snape
Theme/Tone: funny, smutty, fluffy.
Additional Info: No bashing the ex wife, please? :)