Per 
Item : SCP-XXXX
Object Class: Euclid
Special Containment Procedures: Scp -xxx is to be contained in a 8 ft x 8 ft x 8ft humanoid cell at site 13. The cell is to have a mirror on each side, including the floor and ceiling. All mirrors are to be shatter resistant. The walls are to be sound proofed. The entity is to have a tank filled with water no warmer than room temperature. This tank is to be the size of a queen sized bed, as the creature uses it to sleep. The only means of speaking to the creature outside of cell should be a voice manipulating microphone placed inside, which feeds to the observation desk when subject is in need of assistance. SCP-XXXX is to be fed 3 meals a day and the drip of water inside its containment cell refilled bi-weekly. This water is to be held in a container which does not allow in any heat to keep the water cold. If the water is found to have been warmed up, scp-xxx must be handed over to medical staff for dissolution of any repairs to its body with and acid of no higher than a 4 pH. Due to the sophisticated nature of SCP-XXX, it is to be provided with books, art supplies and other simulating activities in order to avoid activating it's agitation stage. It is insistent on being referred to as female and becomes hostile if called by any other pronoun. No male staff are allowed in SCP-XXXX's containment chamber at any time, even homosexual males to incident that happened on [REDACTED]. To see detail of incident please see addendum -3.
Object Class: Euclid
Description: SCP-XXXX is a euclid class humanoid. When the subject is viewed by non male personnel, it will appear to be a fish-like biped in a state of severe injury. Multiple wounds are on it's body, some of the wounds are so deep that bones and organs are visible, depending on where the wound in question is. It is often seen tending to its wounds with licking and prayers in an unknown language. These attempts at healing are not very successful.
When it is viewed by a male, regardless of sexuality, it will appear as a beautiful but battered woman. Its beauty is seemly dependent on the ideals of the male it is attempting to prey on; many different male personnel have described SCP-XXX's appearance as different, but always attracted to it. The only thing consistent between it's two forms are its voice. It has a hypnotic voice which has minimal effect on females, but is moderately to extremely effective on males (depending on the mental wellness of the male).
When SCP-XXXX is successful at enticing prey, SCP-XXXX will engage in normal human female court ship behaviors, this generally takes anywhere from a couple weeks to a couple months. Once the prey has fallen in love with the entity, it will then do everything in it's power to get its prey alone to take its "virginity". Once they are alone, during intercourse the entity will ooze an organic and extremely toxic slime from the walls of it's genitalia and out from its skin. This keeps the victim in the mating position, keeping them aroused while it gets into the bloodstream and kills them. Once the victim is dead, SCP-XXXX will rip away from the corpse. Then, with its sharp teeth, will begin tearing fleshy chunks from the body. The entity will then use its salvia to attempt to patch the wounds on its body with the torn flesh. This works only for a short while before the aforementioned toxic slime eventually destroys the tissue.
This process can be stopped at anytime by showing SCP-XXXX's victim the entity in mirror, as the entity's tricks do not translate beyond the boundaries of the mind of its target. The mirror event has also shown to quell SCP-XXXX's hunt and agitation urges, as the sight of its own face seems to severely depress it (seem addendum-2).
Addendum - 1: Attainment of SCP-XXXX
SCP-XXXX was found in the seaside tourist community of [REDACTED], located in the Caribbean, on [REDACTED]. It was discovered because of an increase in missing person's reports that were only male. These missing person reports at first did not rouse a reaction from the Foundation. However, these missing persons reports all happened around the same time as sightings of a mysterious "fish person". The Foundation became involved and discovered SCP- XXXX officially when a hysterical woman walked in on her husbands mutilated corpse and swore she saw sight of a "fish demon" escaping out their bedroom window. She was given Class A amnesiacs and her husband's body went into foundation custody for examination.
SCP XXXX's anomalous properties were not known at first. The team was sure it was an entity, but it's form. 3 of the male task force members gave 3 very different descriptions when viewing SCP-XXXX, after following a mysterious organic slime trail from the woman's bedroom. Despite this, they all felt for SCP XXXX, as she appeared to bruised with cuts and scars. They returned and their confusion for Researcher [REDACTED], who is a woman, to come with them during the next attempt of capture. She agreed. Upon a second sighting near the western beach of the resort, the team waited. The researcher had to cover her mouth and nose upon viewing SCP XXX, as the smell of rotting fish assaulted her senses. She commanded the team to capture it immediately and transfer it to site 13.
Addendum-2: Interview
