Considered to go hand-in-hand with being pansexual
, being omnisexual is a bit different. Pansexuals don't tend to view gender in the same ways that we do, whereas omnisexuals view gender normally, they just don't care.
Omnisexuals are attracted equally to all human beings (men, women, transexuals, etc.) They tend to go through phases of gender attraction that switch frequently and will eventually settle down with whoever wins their heart, regardless of said person's gender.
"Man, Captain Jack Harkness from Doctor Who is such an omnisexual; he'll screw anything that has a pulse."