Long gone, it seems, are her innocent days playing brainy pupil Hermione Granger.
For Harry Potter actress Emma Watson has revealed that she holds a subscription to an explicit website offering sex tips.
The 25-year-old star explained that she paid a £40 ($84) sign-up charge to join the site OMGYES.com - with the OMG standing for "Oh My God".
In an interview with 81-year-old feminist writer Gloria Steinem, the Oxford-educated actress said a friend had first introduced her to OMGYES, and insisted the site was "worth" the money. The subscription-based website claims there are 12 techniques that can help women reach orgasm, and features a series of videos showing women talking candidly about the sexual techniques.
Over 20,000 people have signed up to the site so far, around half of whom are men. The US-based website claims to be carrying out academic research, saying: "Let's lift the veil and take an honest look at the specific ways women find pleasure." Their research is based on a survey of around 1000 women and separate interviews with 1000 women on the subject of their sexual history.