rule 34 2023 abs anthro armband artist name balls barazoku biceps big balls big muscles big penis border bowser bracelet collar erection eyebrows fire flexing flexing bicep genitals hair hi res himbobear horn humanoid genitalia humanoid penis jewelry koopa male male only mario series muscular muscular anthro muscular male navel nintendo nipples non mammal balls non mammal nipples nude obliques open mouth open smile pecs penis rock scalie serratus simple background smile solo spiked armband spiked bracelet spiked collar spikes standing teeth thick penis thick thighs tongue white border 8018481