FURVERT!

1:1 absurd_res anthro anus balls bat big_balls big_penis butt cheek_tuft erection eyewear eyewear_only facial_tuft genitals glasses glasses_only greyscale hi_res huge_balls huge_penis humanoid_genitalia humanoid_penis lying male mammal membrane_(anatomy)membranous_wings monochrome nervous nervous_smile nude on_back penis presenting presenting_balls presenting_penis simple_background small_but_hung smile solo spread_legs spreading tuft vein veiny_penis wearing_glasses winged_arms wings xing1