A 34-year-old stepmother from Marion County has been arrested for lewd and lascivious behavior after her husband allegedly walked in on her having sex with his teenage son from a previous relationship.

On Tuesday, July 30, the Marion County Sheriff’s Office received an anonymous tip alleging that a woman, identified as Alexis Von Yates, had “engaged in unlawful sexual activity” with her husband’s biological son, who is referred to as the “victim” in the arrest report.

A month later, on Friday, August 30, the victim was interviewed by a specialist at a local child advocacy center. During that interview, the victim stated that he was visiting his father in Marion County while on summer vacation.

Alexis Von Yates
Alexis Von Yates, 34, is accused of lewd and lascivious behavior with a child between 12 and 16

According to the report, the victim advised that he had “sex” with his stepmother, Yates, during this vacation, and it allegedly occurred while his father was at work.

On the day of the incident, the victim advised that the alleged sexual encounter with Yates occurred at around 1 a.m., several hours after the other children in the household had gone to bed. The victim stated that he was watching a horror movie with Yates when they both became “bored,” and she allegedly began talking about being “horny.”

According to the victim’s statement, Yates had been making “sexual jokes” around the victim for approximately a week leading up to the incident, including numerous alleged comments about being sexually aroused.

At the time of the incident, the victim stated that he was “infatuated” with Yates, and he asked her if she wanted to “cuddle” on the couch. The victim described how the interaction soon escalated into kissing, and Yates allegedly told him that she wished he was 18 years old.

The victim then described the alleged sexual encounter with Yates in graphic detail, which came to an end when his biological father – Yates’ husband – entered the home. The victim proceeded to run into another room, and his father confronted Yates while she was naked on the couch, according to the report.

Alexis Von Yates
This photo was taken from Yates’ Instagram.

Yates allegedly apologized to the victim’s father before mentioning how the victim looks like a younger version of him.

The report stated that several of the victim’s relatives discouraged him from disclosing what had allegedly occurred with Yates. The victim expressed during the interview at the child advocacy center that he was “angry” that those family members were attempting to “cover up” the incident.

The day after the incident, the victim stated that he called Yates. During that phone conversation, she allegedly spoke highly about their alleged sexual encounter and mentioned that she wished his father hadn’t caught them.

Several attempts were made by MCSO to locate Yates. Yates’ social media profiles show that she regularly posted updates and photos until taking a multi-month break beginning in July. Her Instagram account shows that she began posting photos of her life and family again in late September.

On Wednesday, November 6, a deputy made contact with Yates and placed her under arrest. While in custody, she refused to discuss the incident without an attorney present.

Two days before her arrest, Yates shared a statement on social media recognizing her anniversary with her husband.

“Happy anniversary to my sweet and handsome Hubby! So thankful for the man that you are to me, and our children. Cheers to year seven,” reads the post.

Yates was transported to Marion County Jail, and she was released the following day after posting a $10,000 bond. She is being charged with lewd and lascivious behavior on a victim between the ages of 12 and 16.

On Tuesday, December 10, Yates is scheduled to appear in court at 9 a.m., according to jail records.