DnD Sex Edition

Not unlike a demilich, a flame skull is an animated humanoid undead skull that can fly about and magically attack. A flame skull, however, has an aura of green flames, a more limited skill set, only being able to work with a shortened spell list, and is created to fulfill a singular task such as guardianship of a specific treasure. If you just want to read about how a PC could possibly skull fuck an actually skull, check out my demilich post for an example and add fire damage from the green flames of the flame skull. The flame skull offers an opportunity to try something different. 

Your aches and injuries fade as the potion of healing takes effect and soothes away the burns from that green fireball. The flame skull is nothing but dust beneath your boots and its treasure is yours. You lose yourself in the rhythmic sorting and counting of coins, gems, and magic items, as you tally each before placing it into your bag of holding. Time passes and as you finish the task of packing away the treasure, you become aware of a faint crackling sound. You spin to see pieces of bone knitting together around a pale green spark. The flame skull is being reformed!   

Performance check to determine if the PC can fire up the flame skull (DC 10).

On a success: The flame skull completes its rebuilding, popping its mandible back in place, before pausing to hover before you. “Did you just propose a dalliance? Are you trying to use me to get to my treasure…?” The slightly dry voice of the flame skull fades on the last word as its whirling fire eyes scan the room to see it empty. “Did you take my treasure? Nevermind, I don’t actually care. Do you know what this means?” The creature’s flames grow brighter until it burns your eyes to look at it directly. “This means I’m free!” it shouts loudly. The skull spins about the room, shouting and shooting sparks.

Finally, its delight evidently abated, it returns to hover before you. “I cannot tell you how long I’ve been stuck here and how bored I’ve been! I’ve got an even better idea than you just rubbing against my dry bones, however. Let’s go find a nice someone, or a few someones if you can manage it, and I can watch. Honestly, even before all this being dead, I preferred watching to doing. Now, I don’t even need a chair!” The skull cackles obscenely. “Really, I think this will all work out for both of us. Have you ever boned a skeleton?” the flame skull asks as it leads you further into the dungeon.

The flame skull will stay with the PC for however long the GM cares to play the role. It can watch and critique every future sexual encounter.

On a fail: The flame skull completes its rebuilding, popping its mandible back in place. “Why exactly would I ever care to sleep with a thief like you?” it asks as its green flames glow brighter. 

Initiate combat with a free extra fireball and the flame skull returned to full power.