A study found that couples who delayed having sex had a more satisfying and stable relationship later on.

Couples who had sex as early as the first date, or within the first month of dating had the worst relationship outcomes.

Study researcher Dean Busby of Brigham Young University's School of Family Life explained ""What seems to happen is that if couples become sexual too early, this very rewarding area of the relationship overwhelms good decision-making and keeps couples in a relationship that might not be the best for them in the long-run,"

The delay of having sex allows communication and other social processes to become the foundation of a couple's attraction to each other. The theory of this thinking is that the earlier the couple have sex, it skews away from communication, commitment and the ability to handle adversity.

On the contrary, couples who abstain from sex until after they marry don't get to test out their sexual chemistry and are at risk of marital distress and failure later on.

"Curiously, almost 40 percent of couples are essentially sexual within the first or second time they go out, but we suspect that if you asked these same couples at this early stage of their relationship – 'Do you trust this person to watch your pet for a weekend many could not answer this in the affirmative' – meaning they are more comfortable letting people into their bodies than they are with them watching their cat," Busby said.

He added that those couples who wait to be sexual have time to figure out how trustworthy their partner is, how well they communicate, and whether they share the same values in life "before the powerful sexual bonding short-circuits their decision-making abilities."