2girls, animal_ears, armpits, ball, basketball, basketball_(object), basketball_uniform, blonde_hair, blush, bra, breasts, brown_hair, extra, hamazaki_reina, holding, holding_clothes, holding_shirt, imaizumin-chi_wa_douyara_gal_no_tamariba_ni_natteru_rashii, indoors, large_breasts, multiple_girls, navel, nori_gorou, panties, red_bra, red_panties, shirt, short_hair, smile, sportswear, surprised, underwear, underwear_only, wide-eyed