Rule 34 Dev - 10s 1girl armpits ass bikini black_hair blush breasts card_(medium) character_name cleavage diamond_(gemstone) eyewear_on_head female_focus green_eyes helen_(idolmaster) idolmaster idolmaster_cinderella_girls long_hair o-ring o-ring_bikini o-ring_bottom one_eye_closed shampoo smile solo star_(symbol) sunglasses swimsuit wink|8374412241