My catboy really wants a catgirl friend to play as his little sister. Not looking to erp, just for a flirty quasi-rp friendship with someone that has the same kink.

Why does incest seem to send some people into a frothing rage? Like sure in cases of parents molesting their kids, but some people get unreasonably angry about the idea of similar age siblings or even cousins having consensual sex and I don't get it at all. Fair enough if you don't want to do it, but I don't understand why people would be enraged by it, if people want to fuck just let them get on with it, particularly when we're apparently now fine with people bumming each other which causes lasting physical damage to your ass, or eating ass which has actual health risks.