ヒル娘

With the lower body of a giant Leech, she is a ring type monster. Though she can feed on all of a human's bodily fluids, they will only catch men. Once the Leech Girl locates a healthy looking male, she will suck his entire body into her mouth as she wrings out all of his body fluids. Able to to feast on more than semen, the Leech Girl will force the man to both sweat and urinate as she sucks out everything out of her catch. Equipped with thousands of tongues inside her mouth, she is able to force pleasure into the man. With his body stuck in her mouth, there is no escape as he is forced to continually ejaculate. In addition, by tickling her prey she can force him to incontinence whenever she wishes. Continuing her feast for multiple days, there are many men who are weakened so much that they die. If she finds a high quality catch, she can direct the semen discharge in her mouth to her genitals for reproductive purposes. [From In-game Monsterpedia]