London, April 1 (ANI): A 15-year-old American girl has been arrested on charges of selling her stepsister, 8 years her junior, for sex.

According to New Jersey police, the teen took her 7-year-old stepsister to an apartment close to their home in Trenton town where about seven men raped the younger girl.

It is said the teen was paid for bringing her stepsister to the apartment and she was present at the venue when the men raped the younger girl.

All this while their parents thought the girls had run away.

“We”re talking about a kid who told her sister to go into an apartment and let people rape her,” the Telegraph quoted Trenton police Capt. Joseph Juniak, as saying.

He added: “It”s unfathomable.”

Cops have charged the older girl with aggravated sexual assault, promoting prostitution and other crimes. Although her name cannot be revealed for legal reasons, the county prosecutor plans to request the court to try her as an adult.

The girl is currently held at a youth detention centre.

Mayor Doug Palmer said the younger girl had accompanied her sister to the apartment – where the men had thrown a party – because she was worried about her safety.

Once there, the teen encouraged her younger sister to let the men touch her.

Capt Juniak said: “It went from touching to straight out assault and rape.

“They threatened to kill her if she screamed or told anyone.”

Their parents called the cops when both girls didn”t return home by 4:30pm last weekend.

Two women saw the younger girl crying and escorted her home, where the police had already arrived.

The child narrated the whole story.

Police arrested 15-year-old later that night.

Palmer said: “It”s sickening…The police are taking this personal. I know there”s a place in hell for all the people that participated in this and I”m sure they will get there.” (ANI)