Lithosexual (also called akiosexual) is a sexual orientation on the asexual spectrum. Someone who is lithosexual may experience sexual attraction but does not want it reciprocated. The lithosexual person may be uncomfortable at the thought of someone being sexually attracted to them, or they may loose the their sexual feelings if they learn it's reciprocated. As such, lithosexuals do not feel compelled to seek out a sexual relationship. Like with any sexual orientation, lithosexuals can have any romantic orientation.
Lithosexual can be a sexual orientation on its own or can combined with other orientations. For example, one could be lithosexual and gay, meaning that when one does experience sexual attraction it's only towards people of the same gender.
The romantic counterpart to lithosexual is lithromantic.
Due to a claim of appropriating lesbian culture the term lithosexual has been replaced with akiosexual. Currently both terms are used interchangeably.