That's a good question. Some dealers will tell you it's hard yaoi and you get two guys dry humping each other with all their clothes on. That's hard yaoi? Then seeing actual wieners must be downright illegal! Heh. So here it is... *my* interpretation of the terms so you know what I'm meaning when I say stuff in my descriptions. Typically I think I'm purdy forthright, but y'never know. I might get lazy.

Shonen Ai  Aw.. lookit 'em hold hands and smooch! So cute! Bunnies! Squee!

Soft yaoi  The artist is mean and has men feeling each other up with no nekkidness at all. This is for the sex scenes in doujin when you get to see nuthin' naughty or just hardcore makeout action.

Yaoi  Hey... those two guys are groping each other up and smexing each other nekkid, except someone has cruelly erased all their man bits!

Hard yaoi Huzzah! Those two (or maybe more) unclothed fellows are not only getting it on, I can actually see hints of what they're actually *doing*!

Explicit Whoo Hoo! I struck gold! I can see their winkies and liquids and everything! *gets a nosebleed*

So as you can see, what's "hard yaoi" to most vendors is *not* hard yaoi to me. I think this is because I'm actually a fan of the genre and they're just selling doujin to make money and know the phrase "hard yaoi" will get us bidding. I'm not trying to sound superior or anything, I've just seen the trend of false advertising. Frankly I think it is tantamount to lying and hate these dealers because they've ripped me in the past. Hell, you don't know how many times I've bought a 'hard yaoi' book only to get a shonen ai doujinshi. It's not that I don't like shonen ai, just don't lie to me! ARGH! Then again, selling doujinshi is their business, it's only clearing book space for new doujin for me. Maybe that's the difference. But them fibbing still sucks. Ahem. Maybe hate is a strong word. I just want monkeys to throw poo at them. That alone will be punishment enough.

As long as someone films it and puts it on Youtube.
 

Now I might make a mistake once and awhile, but it probably will mean I don't rate the book high enough for your taste, not the other way around. I know some people like yaoi without it being too risque. If this is you, and my description makes it sound scary to you, it probably will be. But feel free to write me for clarification. I try to please.

Don't you love to be an adult and use euphemisms for 'penis' best suited for 4 year olds. I do! Why, I dunno. The looks of horror they conjure I guess. Saying 'penis' seems to be almost criminal where I am anyway... heh.