Linked from
The 9 pages that link to Erogenous zone, each with the reason it gives.
OrgasmRelated: Stimulation of different erogenous zones can contribute to orgasm.
Oral sexRelated: Oral stimulation targets sensitive genital and anal areas.
MasturbationNarrower topic: Masturbation may involve sensitive areas beyond the genitals.
Sex toyRelated: Toy shapes and placement often target particular erogenous zones.