2girls, ass, blush, breasts, brown_eyes, cellphone, cellphone_photo, from_behind, gwyn_(sait0moriyama), holding, holding_phone, kneehighs, looking_back, medium_breasts, medium_hair, merunyaa, multiple_girls, original, phone, purple_hair, purple_nails, shirt, short_sleeves, smartphone, socks, sportswear, vena_(sait0moriyama), white_shirt