
The average British man or woman has slept with 2.8 million people -- albeit  indirectly, according to figures released on Wednesday to promote awareness of  sexual health. 
A British pharmacy chain has launched an online  calculator which helps you work out how many partners you have had, in the sense  of exposure to risk of sexually transmitted diseases (STIs). 
The "Sex  Degrees of Separation" ready reckoner tots up the numbers based on your number  of partners, then their previous partners, and their former lovers, and so on  for six "generations" of partners. 
The average British man claims to  have actually slept with nine people, while women put the figure at 6.3, giving  an average of 7.65. 
"When we sleep with someone, we are, in effect, not  only sleeping with them, but also their previous partners and their partners'  previous partners, and so on," said Clare Kerr, head of sexual health at  Lloydspharmacy. 
"It's important that people understand how exposed they  are to STI's with every partner."