質問: how do you say this in japanese? how do you say fraternal twin sister in japanese. if it helps, my sister is younger than me. so how do you say twin sister how do you say this in japanese? how do you say fraternal twin sister in japanese. if it helps, my sister is younger than me. so how do you say twin sister
回答: twins 双子(ふたご)or 双生児(そうせいじ) twin sisters 双子の姉妹 identical twins 一卵性双生児(いちらんせいそうせいじ) fraternal twins 二卵性双生児(にらんせいそうせいじ)