Normal! Seriously, I think what you mean is someone who takes it to an extreme. People who will have sex compulsively and are clinically determined to be 'addicted' to it are known as nymphomaniacs. These people can have a dangerous preoccupation, and typically will do just about anything with anybody to feed their desire. It's a real mental illness.
a rebel
an exibitionist
"Normal", perhaps? - Most people enjoy sex, so I don't think there is a special name for it.
A sadist.
A beach-goer. Someone who enjoys the beach.
A plushie is someone who enjoys to have sexual relations with stuffed animals or pillows. Basically, someone who is lonely enough to have sex with a teddy bear.
No. Kissing someone is not sex or a type of sex.
Craftist ex. Olivia Nolan is an expert craftist
Someone who enjoys giving pain is a sadist. Someone who enjoys receiving it is a masochist. I'm not sure if there is a special word for someone with both, or if they are simply sadistic and masochistic. Sadomasochist
A Slag
Really, REALLY hungry!
calling someone a virgin means he/she hasn't had sex before