Ever found an angry, purple mark on your neck after a particularly enthusiastic makeout session? We've all been there, left to wonder one thing: what is a hickey, anyway? How long do hickeys last? And ...

The neck is an erogenous zone, so kissing, sucking, and biting the sensitive skin there can can really turn someone on. (And while you can technically get a hickey anywhere, erogenous zones, like the ...