You're Doing Me Wrong: NewScientist Sex Q&A

If you don't think the science of sex is a hairy subject, just ask the late Dr. Kinsey. Or the makers of your favorite depilatory cream, wax, or wheat thresher. Luckily, there exists no shortage of science-minded horndogs on the internet, nor of literal-minded scientists just waiting to offer up clinical but accurate answers to your our most perverted puerile ponderings.
Thanks be to NewScientist for this latest excuse to talk about sex in a sciencey environment - their reader Q&A is full of geeky probings such as "Does the female orgasm serve a biological purpose?" (apparently not - ouch), and poses complicated questions such as asking if the human drive to constantly have sex stems from the fact that our ladies don't go into heat visibly.
But thank the good gay lord, there are some questions not preoccupied with lady-bits, such as whether or not circumcision makes it harder to have an orgasm (some say yes, but apparently that's a hot-button topic for sexologists both amateur and professional). Also, such burning issues as why anal sex feels so good for both partners (not really a mystery) and the length of time it takes for the scrotum to refill with semen.
In the name of all that's scientific, how could anyone not want to know if saltpeter is an anaphrodisiac?
Readers' Q&A: The science of sex [NewScientist]






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The circumcision answer was a copout. The last two answers were really off the cuff and uninsightful. From what I've read, it's not necessarily harder to finish, but it is harder to tell when you're close, and thus it's harder to control it.
As for the last question, they lost a lot of credibility by not correcting the concept. The scrotum is not full of semen. The testicles produce the male gamete, which become mature spermatozoa in the epididymis, and then join with the secretions of the Cowper's glands to become semen. The scrotum has little to do with any of this.
Now, what did this have to do with tech?
Science is tech. And now I'm horny.