g xio111, fiammetta (arknights), lemuen (arknights), arknights, 2girls, animal ears, bird ears, bird girl, bird tail, blush, breasts, eye contact, futa with female, futanari, greyscale, halo, happy sex, long hair, looking at another, lying, medium breasts, monochrome, multiple girls, nipples, on side, open mouth, penis, sex, sex from behind, short hair, simple background, sketch, smile, spooning, sweat, tail, vaginal, white background