1:1 1futa 2014 anthro anus areola artificial_vagina black_nose blue_eyes blush breasts color dickgirl echidna erection front_view fur furry futanari genital_piercing half-closed_eyes holding intersex intersex_only nipple_piercing nipples open_mouth penis penis_piercing pherociouseso piercing sega sitting solo_futa sonic_(series) spread_legs spreading stockings tail testicles tikal_the_echidna tongue veins veiny_penis