An Indiana substitute teacher jailed for sexting a 14-year-old boy had sent him naked snaps every time she showered — and once lustfully messaged him, “God I want you … so bad,” court docs show.

Cassidy Carter had just started substituting at South Dearborn Middle School in Aurora in late 2023 when she admits sending the underage student obscene messages.

The boy “disclosed that every time Carter would take a shower, she would send an unclothed picture of herself and that sometimes it would be late at night,” investigators said in court documents seen by WXIX.

The boy had several nude pics of Carter, then 21, on his phone when the educator was arrested — along with a series of disturbing, loved-up messages the teacher had sent the 14-year-old student.

“God I want you… so bad,” she told him in one exchange, according to documents seen by the Daily Mail.

Carter, then 21, left her role at the school in November 2023 — two months after starting — after her behavior was reported to a school staffer before being arrested the following January.

Carter initially faced six years in prison after being charged with solicitation.

But that charge was dropped when the boy moved out of the area and didn’t want to be involved in the case.

The perverted substitute instead copped to a lesser charge of battery in a plea deal that avoided a trial and saw her sentenced last week to two years in an Indiana county jail.