rule 34 alicorn avian better version at source bodily fluids clitoris girl position cutie mark duo equid equine fan character female female on top female penetrated friendship is magic furry genital fluids genitals green body green skin green storm oc gryphon hair hasbro heart hi res horn male male on bottom male penetrating male penetrating female mammal multicolored hair my little pony mythological avian mythology on bottom on top open mouth penetration penis pony purple body purple eyes purple skin pussy pussy juice renaphin sex simple background spread legs spreading straight twilight sparkle mlp unicorn vaginal penetration wings 3967663