Never before have I look at a fandom and said "Fuck your sprawling daily-life epics, just GIVE ME YOUR DEVIANT PORN!"

But, possbily relevant to your interests: How Transformers Have Sex by dunmurderin. Favorite quote? "Naturally, since Transformers was originally (and still is) a children's toyline/cartoon/comic series, we're probably never going to see anything more intimate than a kiss, but as with any other fandom, give fans an inch and we'll have people having sex on it."