Sometimes in a relationship, sex can get a little stale.

It’s perfectly normal, but as a sex writer the number one question I get asked is ‘how do I get those first time feelings back?’ The honest truth is that you can’t. There’s no way of making things totally new again. But there are plenty of ways of making them deeper, more passionate and more exciting than ever before. And isn’t that just as good?

http://www.newsweek.com/sex-older-cognitive-boost-628185

[This may be of interest to some.]

A phenomenon dubbed "pornosexuality" has emerged where people prefer online porn to sex with real people, it has been claimed.

The term describes someone whose "sexual orientation is linked solely to porn", according to Medical Daily.

One self-identified pornosexual quoted by the website said: "If I had to choose to have one or the other for the rest of my life, I would choose porn over real sex any day."

The first of these is a lay article about research from Emery University published in Nature. 

Falling in love is like being 'high' on drugs: Meeting somebody special activates the same brain cells as illegal substances

The second is from a team in China.

Abstract

INTRODUCTION:

Touch has been found to entail positive effects in the person receiving it, whereas effects on the person giving touch have previously been unexplored. We investigated whether stroking the partner also is a pleasant experience for the person performing it, and whether it has similar effects on well-being and autonomic nervous function as being stroked or stroking oneself. Furthermore, we compared the hedonic and autonomic nervous effects of stroking the partner and self-stroking.