Rule 34 Dev - age_difference anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro anus balls bed butt duo erection fur furniture genitals interspecies larger_male lying male male/male male_penetrated male_penetrating male_penetrating_male nude older_male on_back open_mouth overweight penetration penile penile_penetration penis penis_in_ass rat_tail sex simple_background size_difference skinny smaller_male smaller_penetrated sound_effects tail text young young_anthro younger_male younger_penetrated wintersink bear giant_panda mammal murid murine rat rodent 3:4 comic english_text hi_res monochrome|12552248835