One that enters into
sexual relations with, or relating to, cheese of various assortments.
Cheese may also frequent one's pick up lines and/or sexual fantasies.
Essentially, one who is quesosexual is arroused by cheese. Arrousal may be triggered by smell, taste, texture, or appearance of cheese. Quesosexuals may only be attracted to cheese sexually or they may have a fetish for cheese. Either instance is a case of quesosexuality.