Inm□nycultur□sandsocietie□□□ncestisco□si□e□e□tabo□andisstri□tlyforb□□□en.□heideaofromanticors□xualr□lat□o□shipsbetw□ens□b□ings□sm□twith□h□ck,di□gust,a□□moralout□age.Th□□ab □n□anyculturesandsocieties,incestisconside□edtaboo□ndisst□ictlyf□rbidden.Theide□ofromanticors□□ua□relations□ips□e□weensibling□□sm□twithshock,disgust,and□o□aloutrage.Thetab<□p>□p>Inmanycu□tures□nd□ociet□es□inc□s□iscon□ideredtabooan□isstrictlyfo□b□dd□□.Theide□ofrom□n□icorsexualre□at□onshipsbe□weensiblingsis□etwithshock,d□sgust□andmoralou□rag□.Thetab□/□> Inma□□c□lturesan□soc□e□i□s□in□e□tiscon□ideredta□oo□ndisst□□ctl□forb□dden.Theideao□romanticor□e□ualrel□□ionshipsb□tweensi□lin□sism□twi□hs□ock,disgust,andmoraloutrage.□he□ab