For me, its Monster Throne by Chise Ogawa. This is a one shot and sadly not consensual. I don't recommened this to yall who can't handle trigger warnings. (=・ω・=) reply
I dunno if they are the “spiciest” but I definitely think that this artist draws the best orgasmic expressions on her characters, so here it is.
https://www.mangago.me/read-manga/the_beast_must_die/ reply