People will still get married to the opposite sex even if they're not attracted to them, yes.Will homosexual characters be able to take an opposite gender consort to produce an heir with full equality for sexuality or will that be restricted to bisexual characters? What about asexual characters?
I presume in default settings in Catholic realms for example homosexual characters will still be expected to marry someone of the opposite gender, but will it be just the same small reduction to fertility it was in CK2?
Lack of attraction mainly affects things like seduction, romance, becoming a lover, and such. Being your spouse's lower boosts fertility, so that's something a homosexual character would not be likely to obtain.
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