rule 34 alien animal genitalia anus balls bedroom eyes bottomless clothed clothing covering covering self duo english text experiment species fan character fish genital slit half dressed hands behind head hemipenes knot legs up looking at viewer lying male male only marine monochrome multi penis multiple images multiple poses multiple positions nude on back ovni penis petrock pose presenting reclining ribera character shark shirt sitting slit solo spread legs spreading standing text version comparison wake 1682850