anthro anus backsack balls big_balls bubble_butt butt casual_exposure city city_background clothing exposed genitals looking_away male mostly_nude multicolored_body night outside pantsless perineum presenting presenting_anus presenting_balls presenting_hindquarters rear_view robe robe_only solo thunderstorm two_tone_body styx343 master_splinter mammal murid murine rat rodent hi_res