Hi, I have just lost my HDD and that's mean all my HM I have downloaded so far are also gone. I'm trying to recollect them base on what I remember. At the moment, I can't figure out the HM on my mind. The story goes around a young boy with 3 big or huge breast girls(maybe these girls are cheerleader and one of these girls maybe protagonist's litlte sister). They're fighting for protagonist. One thing I remember that the protagonist is shorter than these girls.
I know the info I give is too vague. But I still hope someone know that manga and help me. Thanks so much for your attention.

P/s: Already found this. Now looking for the other.
The heroine looks like a princess. I don't remember much about the start, but I remember that she went into the forest and got f*ck by flower-like monster. After that, she got dp by 2 gargoyle. And the last thing I remember that a guy(maybe her fiance) transform into a horse-like monster.
Already search through monster tag, but couldn't find it. Hope someone can help.

Vague is understatement of the century. I'm pretty sure you just described 50% of all eromanga ever drawn, ever.

Well, one thing I remember about the guy is that he is good at sport or studying but he is shorter than the girls. And at the very first of the story, 3 girls used their oppai and asked which one he would choose and then he ran away.

Ok, I found that one, but I still have one more to ask.
Updated the 1st post.

Its probably Osanahime Yogatari
http://www.mangaupdates.com/series.html?id=67048

In a time of universal deceit telling the truth is a revolutionary act.
George Orwell