By Lee Kynaston

Or work out. Or rent The Godfather Part II. Or go for a run. All these activities have been shown to raise testosterone levels. And researchers at Athens' Military Hospital in Greece found that the more testosterone a man has in his bloodstream, the better his chances of achieving orgasm.

Great abs may help you get lucky, but if you want to get the most out of the experience, you need to work on your pubococcygeal (PC) muscle. Found on the floor of your pelvis, it controls peeing and orgasmic spasms, which is why doctors and sex therapists recommend developing it to improve orgasm and reduce the chances of premature ejaculation.

(It's also the muscle that enables dogs to wag their tails, but that's another story entirely.)

Kegel exercises will develop PC power. Squeeze the muscle you use to hold back your pee. Once you've identified this muscle, tense it, hold for two seconds, then release. Repeat 20 times, three times a day, gradually holding it tight for longer. And keep at it.

"Kegels must be done on a regular basis to have any benefit," according to urologist Dr Gordon Muir.

No technique is as successful at improving male orgasms as "edging" - holding back at the point of no return, resting, then working up to it again. And again. And again.

Practise by masturbating until you're about to come, then stop, slow your breathing and wait for 30 seconds before carrying on. Or try preventing ejaculation by gently pulling down on your testicles or squeezing the tip of your penis just as you're about to orgasm. Then repeat the process.

Master the art of edging and you'll achieve contractile or "dry" orgasms - all the fun of the Big "O", minus the ejaculation and resultant loss of wood. If you practise enough, you may even experience male multiple orgasms.

Really. Scientists at the University of Groningen stumbled across a curious fact: men with cold feet have a harder time climaxing than those wearing socks.

Why? The more comfortable we are, the more relaxed we are and relaxation means better orgasms. However, since most women find the sight of a man wearing nothing but socks about as sexy as a parking ticket, it may be a good idea to just stick the heater on.

The prostate gland is the closest thing we have to a G-spot, it's packed with sensitive nerve endings and positioned at the base of the penis.

"The prostate is so integral you can trigger orgasm just by massaging it," observes Dr Allan Pacey, senior lecturer in andrology at the University of Sheffield in the UK. You can stimulate yours externally by massaging the area between your scrotum and anus, but reaping real rewards takes more nerve.