Is it common for brothers and sisters to be banging each other?

>>36154208
In antiquity, yeah, a LOT.

>>36154208
The Jews did it all throughout their history.
It's why so many of them have health problems and mental illnesses.
Schizophrenia and psychopathy is common among Jews. Much more so than any other race.

>>36154208
In the past maybe but now no, forget about it.

Incest is exceedingly common in dog breeding. We're talking multi-generational here.

>>36154208

It's pretty common for brothers and sisters to play little sexual games with each other, like really really softcore foreplay, especially when younger like "playing doctor", and then in teen years with bathing suits and getting kind of touchy-feely, but actual banging, anything with genitals, no not at all.