According to BBC News, a simple brain scan can determine whether or not an orgasm is real. The article, found here, states that there is some very obvious brain activity when someone is faking an orgasm, found in the parts of the brain that regulate conscious control. Thankfully, you aren’t usually hooked up to a brain scanner during sex, so if you really feel the need to fake an orgasm, don’t worry, you’re safe.

Image courtesy of Glamour.com
The article also discussed a correlation between wearing socks and one’s ability to orgasm. Apparently, once their tootsies were warm, 80% of the couples in the experimental group were able to experience orgasm, whereas only 50% were able to previously. Who knew?