Is there any story where one of the couple changes gender and they still stay a couple?

This but it's not exactly the best

https://www.mangago.me/read-manga/fucked_by_my_best_friend/

https://www.mangago.me/read-manga/which_do_you_prefer/

I think this as far as I remember

im gonna have to give u a big fat kiss for this one

https://www.mangago.me/read-manga/kanojo_ni_naru_hi/ they were best friends not couple