Underrepresented porn genres. As in rare types of porn that you almost never see.

Here's some of the stuff I hope to see in this thread:

Puppet porn
Invisibility porn
Underwater porn
Sci-fi/Alien/Fantasy porn
Surrealist porn
Porn in unusual locations (arcade, grocery store, hot air balloon, crowded public location, etc.)
Time stop porn
Ice sculpture porn
Statue porn
Sports themed porn
Stuff that looks like cumshots but isn't (confetti, silly string, hoses,etc.)
Conveyor belt porn
Mannequin porn
Women with dried cum on their bodies (preferably the face)
Giant/Giantess porn
Shrinking man/woman porn
Vending machine porn
Human luggage porn
Sex in a see-through vehicle while driving
Virtual reality porn
Zombie porn
Japanese theater stagehand porn
Shadow porn (two or more siloettes fucking)
Sex with a shadow (one normal person fucking a shadow)
Ghost porn
Girls humping stuff
Literal spit grill porn
Mermaid porn
Internal porn
Non-incestuous family exhibitionism (performers being nude or having sex in front of other performers who are supposed to be their relatives, but with NO incest involved)
Frozen woman porn
Female farm porn
Human furniture porn
Magic x-ray glasses porn
Age transformation porn
Stock broker porn
Human sex doll porn
Gender transformation porn
Body swap porn (think like Freaky Friday)
Voodoo doll porn
Magic portal door porn
Door humping porn
Shopping porn
Politician porn
Sex on demand card porn
Hindu porn (like a shiva getting fucked)
Pictures of women coming to life porn
Magic obedience hat porn
Crushed to death by wall of butts porn
Trapped in cement porn
Toilet women porn
Window dressing porn
Plant woman porn
Prison visitation booth porn
Human playing card porn
Remote control woman porn

... And anything else you can think of.