anthro anus balls black_claws black_nose bodily_fluids bottle breeding_mount breeding_stand butt claws cum cum_inside detailed_background detailed_fur digitigrade drooling ears_back from_behind_position fur genital_fluids genitals hair humping inside laboratory looking_pleasured male mounting narrowed_eyes open_mouth penetrable_sex_toy pink_anus pipe pivoted_ears raised_tail saliva sex sex_toy side_view solo tongue tongue_out white_balls white_body white_fur white_hair window y_anus blp arctic_wolf canid canine canis mammal wolf detailed hi_res
he designs and tests them in the lab i guess.