Who are your hàng đầu, đầu trang 10 Taboo anime Couples? (Noted it can be either Actual hoặc Fanfiction)

Noted you can use either yuri, yaoi or incest anime couples but it has to be a Top 10.
Here's my Top 10 for an example:
1. Lucy Heartfilia X Cana Alberona (Fairy Tail)
2. Rias Gremory X Akeno Himejima (High School DxD)
3. Aoi Nagisa X Hanazono Shizuma (Strawberry Panic)
4. Aki X Sora Aoi (Aki-Sora)
5. Kazuto X Suguha Kirigaya (Sword Art Online)
6. Yoruichi Shihouin X Soi Fon (Bleach)
7. Keita X Ako X Riko Suminoe (Kiss X Sis)
8. Kristina Lenz X Ymir (Attack On Titan)
9. Erza Scarlet X Mirajane Strauss (Fairy Tail)
10. Chikane Himemiya X Himeko Kurusugawa (Kannazuki no Miko)