How does sex relate to the family, you say? Well its your lucky day I am going to answer that question!
Before I go any further, remember that you are getting a Latter-Day Saint's view of sex. Yes members of the Church of Jesus Christ of Latter-Day Saints do believe in sex. How else are we going to have our families? Also you will get a view of sex from the point of view of a woman as well.
Back to that question at the beginning. How does sex relate to the family--
Here are some ways that sex can create positive outcomes in family:
* Sex creates families.
* Strengthens marriages.
* Symbol of Unity.
* A proper father/daughter relationship will help a daughter fell loved and not search out improper physical intimacy from the opposite sex.
* Sex creates a bonding chemical called oxytocin (oxie-toe-sin). This is also known as the "love hormone". This chemical is released in both male and females.
That is all great and fine, but I believe that in The Church of Jesus Christ of Latter-Day Saints there may sometimes be a disconnect between sex being sared and ordained of God and waiting for sex after marriage. The church leaders don't mean to do this but, what we hear before we are married is : No NO NO NO Bad Bad Bad! And then after we are married we hear: YES, Go for it now! This may create a disconect in our minds, and confusion. In this book:

The author does an amazing job in helping couples overcome their negative views on sex.
One of the most amazing things that Laura M. Brotherson covers is called the "Good Girl Syndrome"(2004). Some of the symptoms of the Good Girl Syndrome are:
*Discomfort, or embarrassment in talking about sex
* Belief that sex is dirty, wrong, or sinful
* Guilt, shame or awkwardness associated with sexual relations in marriage.
* Discomfort with sexual parts of the body and body functions.
These views have to be overcome in order to enjoy the sacred act of sex within marriage. And it is possible to overcome those beliefs.
I just want to say that LDS members DO believe in sex. We believe that sex should only be shared within the bonds of marriage, because when used outside of marriage there can be harmful consequences. This is a sacred topic, and I hope that I have talked sex in a way that God would approve. I didn't get to talk about everything we talked about in class, but if you are curious for more, I highly would suggest getting the book: And They Were Not Ashamed By Laura M . Brotherson. This book is written for all couples, both the engaged and married. I would highly suggest this book for engaged couples! The way that Brotherson writes is respectful and helps couples (specifically women) to see potential problems and how to solve them. This book is like a private therapy session! I just love this book! Brotherson really did her research for this book!
Well I hope that you have been enlightened and uplifted from this post!