Rule 34 Dev - anal anal_penetration anal_vore anthro anus back_spikes balls bdsm bioluminescence bondage bound genitals glowing group horn infestation living_insertion male oral oral_penetration parasite partially_inside penetration slime solo_focus spikes spikes_(anatomy) swallowing swallowing_parasite vore year losian_(artist) oddbird canid canine gastropod hybrid mammal mollusk slug 2013 artist_collaboration artist_name dated hi_res|3018306130