ambiguous_genderanalanal_beadsanthrobdsmbodily_fluidsbondageboundbuttdigital_media_(artwork)equidequineforcedforced_analforced_blindfoldforced_bondageforced_gagforced_makeoverforced_spreadingforced_spreading_armsforced_spreading_legsforced_transformationgenital_fluidsgenital_leashgenitalsgrouphorselagomorphlatexleashleporidmakeovermalemale/ambiguousmale/malemale_penetratedmammalmaskmotpenetrationpublicquestionable_consentrabbitsex_toyslavestasis_chambertorturetransformationtubeurinewhat_has_science_done