Rule 34 Dev - 2004 2boys anthro anthro_on_anthro anthro_only ass ayame_emaya butt butt_cheeks butt_crack cuddle cuddling duo ears_back equid equine furry furry_only gay hand_on_arm hand_on_hip holding_another holding_body hooves horn horse indoors inside intimate male male/male naked naked_male no_humans nude nude_male penis shower showering showering_together soap tail unicorn water yaoi|10320792256