Urethral sounding - hiding 3 small steel rods in my penis: insert 3 roughly 2" long rods. Two thin ones slide beside each other so initially won't come out of meatus. Later insert a 4" plastic rod. (All under 8mm max dia.) Video is a bit long. 07:05
Tied testicles and creampie: i tied my testicles above the penis. I hit hard on it with my urethral probe. to finish I wank my penis and the sperm remained in the urethral duct 03:17