Times have changed and when it comes to the enjoyment of single sex, women are as entitled to a quick, no-strings shag as the next guy.

But, before you start dialling, remember the following:

1. Use a rubber

Unless a condom can be found, put all calls on hold.

2. No feelings

And definitely NO falling in love. Interestingly, many booty callers add that while intercourse and other forms of sex are fine, kissing is strictly forbidden, since it's too emotionally loaded.

3. If a booty call sleeps over...

...they mustn't leave traces of their visit.

4. Don't socialise

And never, ever call for any reason other than to hookup.

5. Keep it infrequent

Don't make more than three SOS calls a month. It's a casual sexual relationship, so your booty call needs to rest easy, knowing you're not about to become invasive.

6. Avoid the redial button

If he doesn't answer or call back after you make the first attempt, it's time to reach for your bedside book.

Got any other tips to add? Enlighten us with your wisdom below.