The most explicit yaoi anime?

[nicer22]

enzai and shonen maid kuro-kun for me

[itsapanda16]

There's a a lot, but that's venturing into the hentai category.

[無用]

Sensitive Pornograph, Shounen Maid Kuro-kun, Enzai, Boku no Pico, Pico and Chico, Pico x Coco x Chico. :cuteonion26:

[Virdian*]

Boku no Pico was the hardest one I've seen so far.

[CircleofLife=0]

The more explicit the better I say, Sensitive pornograph, Maiden rose, Boku no pico, Boku no sexual harassment. But if you want something more explicit...simply watch 'gay porn' lol.