Reasons for why incest is bad:
1. Majority of incest is inherently abusive. "Consent" especially cannot exist in a shared space where a family member can be groomed by another, even into adulthood.
2. It's unethical. It has produced both biological and social consequences.
I want to draw MY FAV PAIRINGS, and MY YUMESHIPS, and SELFCEST, but the problem is that COMING UP WITH POSES FOR TWO CHARACTERS AT ONCE IS TOO HARD!!!!!!