Roper

Encyclopedia Entry:
Strange monsters that have a human upper body and gelatinous lower body, like that of a slime, from which long tentacles grow. It has been suspected that they may be a variety of plant type monster but the truth is uncertain. Actually, they were not originally monsters to begin with and their form is the result of them parasitically infecting human women and fusing with them. Ropers start out appearing as egg-like, shell-covered, spherical objects; adult ropers seize human women with their tentacles and shove their ovipositer tentacle into the human's vagina to implant these "roper eggs". A Roper egg implanted inside a human women will soon sprout like a plant, extending a small tentacle. It will spread it's roots in the host women's womb and fuse with her. A Roper parasite will then remake the host's body from within. The host's lower body will change to become gelatinous like that of a slime and numerous tentacles will appear from there.

During the Roper's larval stage the host will retain her human consciousness as is, but because the fusion between the Roper and it's host is incomplete the tentacle's will ignore the host's will and wriggle around doing whatever they please. In order for a Roper to grow into adulthood the semen of a human man is required. So when the tentacles moving on their own sense a man's presence, they will entwine all over the host's body; tentacles wrapping around the breasts will rub them quite roughly; others will violate the host's mouth, spitting out large volumes of thick, sweet mucus (which will arouse her wildly) and still others inserted into the vagina will stir it up while making alluring wet noises. This will cause her to cry out alluringly in ecstasy and lure the man.

After enticing a man in this fashion, when he draws near and takes the bait, he'll be seized by the tentacles and have the semen milked out of him. After ingesting a man's semen, a roper will grow rapidly and completely fuse with its host.