The answer is
perhaps a different type of sex the other partner doesn't do
For a male perhaps a tighter Jack and Danny
Or for a female perhaps a Larger Hampton Wick
Then there is the dare factor
The title enhance means make confusions,In common way to get ,the first is two people by couple in a relationship which maybe in different sexual or same,the second is special to the marriage relationship.
On the first way ,cheat each other for the competition .The other hand means that a abnormal views in social.
Why so affinity relationship had it?
Communications is the quite way to solove that the more and more rapidly life company with the development of urbanite make it.Also the belief is the important factor in relationship.When I was childhood with parents ,both need to work all day for earn life,why not there has no essential promblem in relationship? In my observation, not only the univocal life and also they believe the simple love that is the only choice with whole life. From the open of recently of China, there has some new concept word --"fast-food love","fast-marriage"... which make confusion about life ,marriage and love.The love is one of the puerility emotion and only by human .The marriage also is the sacred thing in two' choice
which falls in love each other deeply. Cheat in marriage maybe made a broken love and marriage.Everyone hope a sweet love .If we are not care about the love ,there also has not a sweet love. So we need to learn how to love and get the other one' emotional focus.
To real live,To real life.