2girls, blush, breasts, caught, cleavage, horikawa_raiko, long_sleeves, looking_at_viewer, lyrica_prismriver, miyamoto_(dominocube6), multiple_girls, no_headwear, open_mouth, red_eyes, red_hair, shirt, short_hair, sitting, sitting_on_lap, sitting_on_person, size_difference, smile, surprised, touhou, white_hair, yuri