Asexual: A sexual orientation generally characterized by not feeling sexual attraction or a desire for partnered sexuality. Asexuality is distinct from celibacy, which is the deliberate abstention from sexual activity.
Demisexual people only feel sexually attracted to someone when they have an emotional bond with the person. They can be gay, straight, bisexual, or pansexual, and may have any gender identity. The prefix “demi” means half — which can refer to being halfway between sexual and asexual.
These two are combined together because they have the same colorway but different styles of flags.