Millennials and Sex

As a parent of a teen and pre-teen, this article at the Washington Post caught my attention yesterday. It's covering a study on the sexual activity of Millennials:
"A study published Tuesday in the journal Archives of Sexual Behavior finds that younger millennials — born in the 1990s — are more than twice as likely to be sexually inactive in their early 20s as the previous generation was."
Read the rest.
Why do you think this is? Has the deluge of, and easy access to, pornography simply reached a tipping point? I wonder if the fact that there is so little that is taboo about sex any longer in popular culture has made is less desirable–what's the fun of it if you're not sneaking around?!

I grew up in a generation and Christian sub-culture that basically communicated–whether intentionally or not–that sex was bad. Certainly, this was intended to be what was communicated to young people before marriage. But it's not as if you can have one understanding of something and simply flip a switch in your brain once a ring is on your finger. The long term impact of this for many gen x-er's I know was terrible (i.e. broken marriages).

While I don't think that we should go back to sneaking around or the shame culture found in more conservative Christian circles, I do wonder what the long term impact of this pattern found in this study. Have we taken the enjoyment and fun out of sex? Or have we reached a more sane approach about sex more generally in culture?