Zachary Stinchcomb, 23, pleaded guilty earlier this month to unlawful sexual intercourse with a minor and faces probation and up to a year in jail.
According to a search warrant, Stinchcomb pretended to be 17 years old when he met the girl on a website called meetme.com. The two exchanged text messages and eventually met in person and developed a sexual relationship.
The warrant says the girl met a boy at her own high school and broke off the relationship with Stinchcomb, making him upset.
On Jan. 22, the victim asked Stinchcomb for a ride to school, but he drove her to another area, where he cut her panties from her body and forced her to have sexual intercourse, according to the warrant, which stated that the defendant was in his EMT uniform when the assault occurred.
A spokesman for Rural/Metro of San Diego, where Stinchcomb worked as an EMT, said the defendant was immediately suspended without pay once the company learned of his arrest.