Rule 34 Dev - 1boy 2024 abs ai_generated anthro athletic athletic_anthro athletic_male avaru biceps bulge bulge_through_clothing canid canine canis chest_tuft clothing dalmatian firefighter fur humanoid male male_focus male_only mammal muscular muscular_male navel nipples pecs pose simple_background solo spots tuft veiny_biceps white_fur|13502749120