A male centaurian. (XY)Can look feminine but must have clear signs it's male, such as an adam's apple or dick/bulge, or body hair/beard.
Offspring will be Male, Female, or a Hermaphrodite.
A female Centaurian. (XX)Can look masculine but must have clear signs it's female such as boobs, curves, full lips, or a generally feminine appearance.
Offspring will be Male or Female.
A centaurian that's considered to be unisex but functional as both male and female. (YY)They can breed with any gender centaurian and must show both masculine and feminine aspects such as boobs, curves, dick bulge, and/or adam's apple.
Offspring will be Male or a Hermaphrodite.