Sex or physical intimacy is a symptom of the real intimacy between two people. It used to be all about the children and STDs...but those are somewhat lost on people today with the available birth control methods.
That intimate act actually deepens the bond between a man and a woman.
I've never met anyone who doesn't remember the first person they had sex with. Because they are hardwired into your brain.
And when it's with someone who is only temporary in your life and uncommitted it will put a hard spot on your heart. (Theirs too)
The more partners you have sex with the less enjoyable sex becomes. And it's a lifetime thing...not just "for a while" type thing either.
This is the very definition of "less is more".
I can go into details but it gets kinda graphic for this forum. But men and women both gain with the fewer sex partners they have.
A person's body is a gift they give to a spouse. And that gift can either come from the Goodwill clothing bin or a high end new clothing shop. The choice is yours.