I sincerely hope you're being sarcastic. Religions perceive sex as a necessary evil, to be used for procreation only. Actually, most religions go even further and condone the concept of love (and by extension sex) only if it subject to some kind of religious regulation mechanism, because anything else gnaws away at the oppressive stranglehold religion has over everyday life. In order to exist, religion needs to have a monopoly on everything fulfilling and meaningful.
Huh? Apparently you haven't read the biblical Song of Solomon. To quote from Chapter 7 (NIV translation):
1 How beautiful your sandaled feet,
O prince's daughter!
Your graceful legs are like jewels,
the work of a craftsman's hands.
2 Your navel is a rounded goblet
that never lacks blended wine.
Your waist is a mound of wheat
encircled by lilies.
3 Your breasts are like two fawns,
twins of a gazelle.
4 Your neck is like an ivory tower.
Your eyes are the pools of Heshbon
by the gate of Bath Rabbim.
Your nose is like the tower of Lebanon
looking toward Damascus.
5 Your head crowns you like Mount Carmel.
Your hair is like royal tapestry;
the king is held captive by its tresses.
6 How beautiful you are and how pleasing,
O love, with your delights!
7 Your stature is like that of the palm,
and your breasts like clusters of fruit.
8 I said, "I will climb the palm tree;
I will take hold of its fruit."
May your breasts be like the clusters of the vine,
the fragrance of your breath like apples,
9 and your mouth like the best wine.
That doesn't sound like "necessary evil" to me. I'd say it sounds rather enthusiastic.