Obviously an orgasm can never be classified as bad, but if you’re curious about how yours compares with the average experience, check out these sex facts:

Length of an orgasm: 13-51 seconds
If you want to extend yours, try Kegel exercises. “They will enhance the power and duration of an orgasm,” says Emily Dubberley, author of Brief Encounters: The Women's Guide to Casual Sex. “Just flex and release your vaginal muscles as if you’re trying to stop the stream when you’re [peeing]. If you just do them during advert breaks while you’re watching TV, you’ll tone up all those muscles.”

Number of women who admit to having faked: 50%
“As a woman does not need to climax to conceive, the female orgasm is a far less stable response than the male one,” says clinical psychologist Janice Hiller. “Many people don’t realize this, which is why women sometimes feel the need to fake an orgasm to protect their partner’s feelings.”

Number of women who regularly climax during intercourse: 42%
If you want to up your percentage, get yourself a good vibrator and indulge in at least 20 minutes of foreplay. “You want to stay in the so-called ‘plateau stage’ for as long as possible,” says psychosexual therapist Paula Hall, author of The Ultimate Guide to Great Sex. “Get yourself to a high state of arousal and then allow it to subside slightly, build up again, subside slightly, build up…” You get the picture.