Anime with sex scene

My favorite sex scene in anime/manga is probably the one from Tokyo Ghoul:re. It’s straightforward and yet it means a lot for both characters involved, and is essentially the culmination of both their arcs with each other.

One thing that is very impressive about this anime in general is how well it integrates sexuality in what would otherwise be very typical developments in a shoujo story. Iku, the titular female sister, had her love taken away from her when the anime shows Yori being seduced and having sex with her best friend Tomoka. Even when the pair finally find themselves in each other’s arms (in a love hotel, no less!), the usual dynamic of Yori teasing and comforting Iku remains true.

What is the most well done, tasteful sex scene in Anime?

Anime With Actually Sex Scenes (Non-Hentai)