Rule 34 Dev - 2020 alien anthro back_muscles biceps blue_body blue_eyes blue_skin bodily_fluids boots boots_only burlap_sack clothing countershading exercise fin fish footwear footwear_only genital_fluids gloves grey_countershading handwear head_fin hi_res holding_object humanoid leather lifting looking_at_viewer looking_back looking_back_at_viewer male male_only marine mostly_nude muscular precum sandbag shark shed shoes shoes_only solo standing sweat tjloog triceps wake wall_(structure) wood wood_floor wood_wall workout|4777337704