@Yi_eune I see it as unusual to talk in english during life in general, especially during sex, rather in our native language. I'd understand if one of us speaks another language so we communicate in english, but if both of us were born in this country where english or any other language besides it's own isn't used if not necessary, and we've both spoken this language since we spoke our first word as children, it's odd to talk in another language, and can be awkward expecially if one of us isn't very good at it, etc. It's just not common. Besides that, I've found it turns me on when my boyfriend speaks to me in english, since I find many sexual words in our language sound a bit foolish, and prefer them in english, but it is indeed odd and I'm not used to it, I also don't think my english sounds very attractive, since I never speak it and don't practice so I don't have the confidence to do that without creating an awkward/odd situation and feeling terrible about myself.