The official English page for the game pretty clearly states it's a "lovey-dovey" adventure so I'd give up hope of waiting for one of the girls to get screwed by another cock let alone a monster cock. At the very most monsters will play a part in ecchi shenanigans but I don't think you'll get anything more than a slime molesting boobs or something. I also used google translate on the DLSite page so take what you will but I think I remember it explicitly saying there wont be any "rape" so to speak anyway.
All that said, I'm not actually THAT far into the game. Stuck on Quest 11 where I think I'm supposed to find some kid in the town who's playing hide and seek? Can't seem to find him assuming he's still in town.
I was also a little worried that H scenes would be exclusive to quests but it seems that once the game lets you swap to playing as the hero only (using TAB), it opens up a bit and some of the girls can be found for some fun inside your house.
You can also go to your bedroom and call in any of the girls you want to play with them there too. The pose itself seems to focus on the dakimura angle but from what I've gathered, you can do anything with the girls so long as you've already experienced it with them before-hand.
For example, after Iris' first scene (or 2nd if you count the tree apple scene), you can grope, nipple-play, finger and titfuck her on the bed because that's stuff you've already done with her, but for Sakura, you can only grope and titfuck her because that's all you did with her in her 1st scene.
Still trying to learn quite a bit from this game given the language barrier and machine translation used for assistance, but it's decent if not a bit slow to get used to what you're doing first. I'm sure it's because I'm running around blind, but for the most part I kept getting my ass kicked by fairly early bosses until I decided to just avoid monsters and grab equipment from chests in areas I'm probably not fit for. You seem to heal after every battle which takes away the frustration thank god but you can't seem to actually use any sort of healing spells from what I can tell, meaning you have to stay stocked up on potions that use up an equipment slot. I've had a few crashing issues when facing Bosses too which seems to be random. Possibly when you die and try to fight them again too fast.
Anyway. Girls are good. I like big boobs. I'm fairly happy.
"Edit"
Unless it's randomised, I found where the kid hides for Quest 11. First place is in the weapon shop behind some crates. Second place is behind the barrels in the quest building/adventurer guild building. Third place is in that place labelled "Love Park" next to that restaurant. A bit of a pain but once you know his sprite is actually visible without having to click on anything, it isn't too bad.
