Cibosexual

Sib • o • sek • shoo • uhl
Not

Chee • boh • sek • shoo • uhl which could mean food/sexual to some
When one person is attracted to a person and their siblings. Cousins, uncles, aunts, parents all do not count. Siblings can be of any gender

Being a cibosexual is frustrating because no one understands how I find Johnathan and his brother Daniel both as attractive as their sister Samantha.