Some TMNT stuff really isn't for little kids.
Meggan Tully, while dating George Hill, is abducted by aliens and impregnated. The event is removed from Meggan's memory and she is returned to her car. George believes the child is his and marries Meggan.
When the unusually shaped child is born, Meggan and George chain her up in the basement, with only a television set for company. They believe the child to be a punishment for their pre-marital sex.
After years of guilt and suffering, the couple commit suicide and Sara is found by the paper delivery boy. The local police are afraid to enter the basement and call in an officer - called Dragon - from the Chicago Police Department, who releases Horridus and takes her to his station house.
CPD's Captain James Stewart is extremely enthusiastic about assembling a superhuman strike force for his department and recruits Sara Hill, giving her the codename Horridus, to his "Freak Force" program. There, she meets Dragon, Rapture, Barbaric, and Ricochet who at the time is too young to join the department. Due to restrictions imposed by the local government and their police superiors, the 'freak' officers quit the police force and become bounty hunters, allying themselves with the veteran hero Super-Patriot and the new Mighty Man.
Freak Force fights a number of menaces, ranging from the super-villains such as the Fantastical Force, the Covenant of the Sword, the Throwaways, Master Atom, Bludgeon, their own evil clones and the Frightening Force, the extraterrestrial Martians, Matrix Swarm, Cosmic Cops, and other heroes like Badrock, WildC.A.T.S., and Cyberforce.
They even fight their own government; at one point Horridus assists in taking down a secret prison for super types.
Eventually, Horridus and most of her teammates join the United States government's new super-team to replace Youngblood - presumed dead from the Martian attack - the Special Operations Strike Force. Horridus gains more worldly and fighting experience.
For a time, Horridus lives with Rapture. However, Horridus still hasn't come to terms with the fact she is very sharp; at one point Horridus destroys Rapture's waterbed, after which Horridus briefly meets the turtles, whom she considers cute. The character had many appearances in the Turtles' own Image comics.
Sara met Michelangelo and bonded with him over cartoons. She was also affectionate, and the two of them reached third base on a couch. Mikey quickly fell in love with Sara, and their time together inspired him to become a romance novelist. The novel he wrote, "The Rose Among the Thorns", actually managed to become a bestseller and earned the fictional in-universe recommendation of Oprah's Book Club.
- In Mirage TMNT Volume 4, Mikey had a one-sided relationship with another easily-distracted woman, the Styracodon Regenta Seri. The two had sex not long after meeting, and Mikey even fathered children with her, whose eggs she soon laid. But that relationship ended bitterly: Seri soon abandoned Mikey to be apprehended by her own guards, and Mikey was locked up without trial in a Styracodon prison.