ahegao anthro balls beak bed bodily_fluids cum ejaculation furniture genital_fluids genitals grey_beak humanoid_genitalia humanoid_penis looking_pleasured male masturbation nipples nude open_mouth penetrable_sex_toy penile penile_masturbation penis pent_up red_body sex_toy sitting solo steam thick_thighs av-10 avio_(avioylin) avian bird hi_res watermark