"The risks of STDS have got to be discussed and prevented from spreading," Allen tells Web MD.
If, for instance, you're on the fence about whether or not to take sexual activity to the next level, a healthy dose of fear may cause you to pause, particularly if you're not prepared to take the necessary precautions.
"My advice is this: wait as long as you can," Allen says.
Her rationale for these dating rules may seem obvious, but many people tend to forget in the heat of the moment.
"You might find that you don't even like the person," Allen tells Web MD.
Other experts agree that sex too-soon can lead to undesirable consequences.