Rule 34 Dev - 1boy alphys anthro balls ballsack belly bhm big_balls big_belly big_veins clothing coat dangling_testicles dark_penis dark_testicles darkened_genitals erection excessive_foreskin eyewear flashing foreskin glasses grin hips huge_balls huge_cock humanoid_penis hyper hyper_balls hyper_penis intact lab_coat lizard looking_at_viewer male male_only moobs mostly_nude navel open_coat overweight overweight_male penis pose presenting presenting_penis reptile rule_63 sagging_balls scalie scrotum smile solo solo_male somevelvetmorning standing testicles thick_tail thick_thighs thighs topwear uncut undertale unretracted_foreskin vein veiny_penis video_games wide_eyed wide_hips yellow_skin|3854826952