Rule 34 Dev - 2014 abs anthro anus black_and_white braided_hair breasts clothes duo elaine equine fasttrack37d female highres horse line_art long_hair looking_back male male_pov mammal monochrome muscles muscular_male panties panties_aside penetration penis pointy_ears pov raised_arm sideboob simple_background sketch straight tied_hair twin_braids twintails underwear vaginal_penetration vein veiny_penis watermark white_background|2296028688