Generally when I play ero games I want to fuck everything that's even a little attractive. I'll play loyal if the game seems to reward that (for example, in Melody you unlock a lot of content by being monogomous).
Yeah, I get that the game doesn't have incest in it (at least not at this time). Just seems strange to do a game whose focus is on a little sister and then *not* have a brother fuck her, since that is so common in ero games. Unusual creative choice by the dev, but okay.
For me it's like someone putting something gross on an otherwise good pizza. Just would have been better if it was left off. I get that some people think a twink popping hormones is hot, but I'd be happier if it was less common in "mainstream" porn games.
I think some of it is developers...
Having a good dick is kinda needed for harem games, since there needs to be some reason for girls to be abnormally attracted to the MC. But a lot of devs go way too far with these big veiny baseball bats. I think those are just guys who like drawing dicks more than a serious attempt at a...
The problem is that the game developer usually doesn't say "OK, I have these images of <some porn actress> doing <this stuff>, so I need to write the story around that." Instead they write whatever they think makes for a good story, but since they don't have images for that exact stuff you end...
Harem girls gotta be bi, half the fun is pairing them up with each other. Bonus points for lesbian girls that learn to love my dick, or (even better) straight girls that learn to lick pussy for my entertainment. Lezcest within the harem is peak.