A highly sensory, walnut-sized gland inside the body, below the bladder and between the rectum and urethra at the base of the penis.
The commonly cited latex condom failure rate of 2 percent came out of these clinical trials.
A hydrophone is an instrument for recording underwater noises.
Usually a urine test, a pregnancy test measures for a specific hormone, hCG, only produced with pregnancy.
Polyurethane is an enormously versatile polymer.
Only three studies filled the condoms with solutions that actually contained HIV.
In human reproduction, semen both helps sperm "swim," and counteract the acidic nature of the vaginawhich would otherwise be hostile to sperm.
An insertive sex toy that usually looks more or less like a penis but can sometimes bear little resemblance and is usually sex adult uk from silicone or rubber, but can also be made with glass, wood, metal, or any number of innovative materials.
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