Couples are now having sex more often, for longer and in more risque positions thanks to - you guessed it - the Fifty Shades of Grey phenomenon.
The effects of the erotic novel on British bedrooms was tracked in a study carried out by Netmums.com, and has shown the book to have had a profound impact on participants' sex lives.
The research revealed that after reading the saucy story one in eight women have started having sex with their partner everyday, a huge increase from the 3% who did so in 2011.
The study also showed that couples are having sex for longer, with two thirds of women reporting an added 15 minutes to each love-making session.
Couples are getting more and more adventurous too thanks to EL James' turn of phrase, with "reverse cowgirl" named the favourite sex position - knocking "doggy style" off the top spot.
The erotic trilogy centres around sexually inexperienced student Ana Steele, who takes part in bondage-style sex games with billionaire (and heartthrob) Christian Grey.
Ever wondered how to turn up the bedroom heat? Sophie Morgan, author of The Diary of a Submissive, offers her top five tips.
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