Rule 34 Dev - 1boy 2017 5girls anthro anthro_on_anthro anthrofied anus applejack armpits big_macintosh blue_eyes blush breasts cum cum_in_pussy cum_inside cutie_mark earth_pony equine erect_nipples female freckles friendship_is_magic furry green_eyes grin group hair hand_on_hip horse inside limestone_pie long_hair looking_at_viewer looking_back male male/female mammal marble_pie maud_pie monochrome my_little_pony nipples on_top open_mouth open_smile penetration penis pinkie_pie pony purple_eyes pussy reverse_cowgirl_position sex short_hair sibling sisters smile spot_color vaginal vaginal_penetration voyeur zwitterkitsune|672495