Yes, same with adopted. I'm fine with those as long as it's part of a larger story involving blood relatives incest in addition to the step family and/or adopted
It is a genre that is woefully under represented. But a few:
Such a Sharp Pain --- MC has several flashbacks with SS
Insexual Awakening --- MC is shota and gets with several females, mostly family, including loli twin
Flat Cheez trilogy --- Mostly sholi content
Blended Family
The Lost Guardian...
If the 10/10 is based on my standards, then a year would not end it, unless it was something out of our control. My 10/10 would be focused more on virtues than solely on physical appearance. Not saying physical appearance is unimportant, but I'd rather have a 6/10 in looks if she was...
Bad Teacher. But I think the creator passed away, so no way it'll ever get finished. That is, unless another creator knew him, had his outline, and decided to finish it. But it's been, what, 2 years. I don't see it happening.