vocaloid, kagamine rin, kagamine len, bouto (paranoia), censored, 1boy, 1girl, aqua eyes, bisexual, blonde, blush, breasts, bridal gauntlets, brother and sister, elbow gloves, fellatio, gloves, group sex, hairclip, hair ornament, hair ribbon, headphones, kiss, multiple penises, necktie, nipples, nude, open mouth, oral, penis, ponytail, ribbon, sex, short hair, siblings, tekoki, tongue, trap, twins, yaoi