Using penis and prostate-specific sex toys are a great way to get a better intimate understanding of yourself or as a couple. Stimulation of the prostate can be an uncofortable topic for some but it can offer a number of benefits. The prostate is often described as equivalent to the G-spot. It is a walnut-sized semen storage gland located at the base of the penis, just below the bladder. It can be stimulated both externally through pressure against the perineum, internally through the rectum and can create powerful, longer-lasting and often multiple orgasms.