“Nice guys finish last” is one of the most widely believed maxims of dating. Fleshed out, the idea goes something like this: heterosexual women might say they want nice characteristics in a partner, but in reality what they want is the challenge that comes with dating a “bad boy”. This idea is so widespread that some people are even making money off the back of it, selling self-help books and teaching men how to pick up women by insulting them – a practice known as “negging”.

Recently, an article published by Broadly claimed, “Everyone knows … are desirable. Thanks to a recent study, this is now scientifically verifiable.”

Dear Lovehacker, My girlfriend and I have been together for a few years and we're really happy. But for the past six months or so she hasn't been orgasming very often during sex and only when I'm rubbing her clitoris. I know that changing up routines can be helpful for long term couples, but she's sexually very shy and only really interested in the missionary position. What should I do?

People who use lube have better sex. It eases penetration and makes playing so much more enjoyable - with or without sex toys. It’s the easiest and cheapest way to make every sexual experience you have smoother and more pleasurable. Here's how to choose the best product for your needs - from anal lubricants to sense-altering liquids.