Rule 34 Dev - 2014 abs anthro balls biceps biped black_and_white duo erect_nipples erection fin fish gecko glans hammock hands_behind_head hat humanoid_penis imminent_sex line_art lizard long_tail looking_at_viewer lying male marine monochrome musclegod124 muscular muscular_male nipples nude obliques on_back on_top pecs penis reptile scalie shark signature simple_background straddling tail_fin teeth tongue tongue_out vein veiny_muscles veiny_penis white_background yaoi|3068483936