- PLANTATION, Fla. – Detectives uncovered a sordid series of chats, searches and child sexual abuse material in a Plantation woman’s online life, leading to her arrest on nearly a dozen felony charges, police allege in an arrest warrant.

Some of those chats included sexual fantasies about drowning — then raping — children, the warrant states. Police said they also found another disturbing discovery on Angela Marcella Rio’s phone: a video of her sexually abusing her own dog.

The 33-year-old made an appearance in Broward County court Monday after prosecutors filed formal charges earlier this month. Rio was originally arrested in mid-October and is facing 11 child pornography-related charges after police alleged that she possessed more than 100 “child exploitative/age-difficult” images and videos.

- A Plantation Police Department detective working for the Internet Crimes Against Children Task Force wrote in the warrant that authorities initiated the investigation into Rio began May 5 after receiving multiple tips originating from the websites Reddit and Quora as well as messaging app Kik. They alleged that an account, ultimately traced back to Rio, uploaded multiple files of child sexual abuse material to the services.

- During their investigation, police said they uncovered a series of Google searches indicating a sexual interest in children; those included queries like “mom and son porn” and “do babies feel sexual pleasure?”

They said they also found a series of chats with men online that revolved around sharing detailed sexual fantasies about young children, including content relating to an “underwater fetish,” in which police said she fantasized about drowning a child in one instance.

- She told detectives any sexual chats were a “dirty thing” she did to “make money on the side” using Quora, a question-and-answer website, and adult-oriented website OnlyFans, police wrote.

According to the warrant, investigators obtained a warrant to search Rio’s electronic devices and found 115 child sexual abuse or “age-difficult” images or videos on her phone.