Urethral play can involve the introduction of either soft or rigid items into the
meatus of the penis (as well as farther in) or vulva. Other toys and items, such as
catheters, may be introduced deeper; in some cases even into the bladder. Some items may even be allowed to curl several times or expand within the bladder. This action may be directly or indirectly associated with stimulation of the prostate gland and some types of bladder control. In women urethral sounding can lead to clitoral stimulation. == See also ==