A Long Island high school teacher was arrested for asking two female students to pose for him — one in a bikini and one in the nude, police said Friday.

Jairo Inswasty, a math teacher at Central Islip High School, allegedly preyed on the two 16-year-old girls from January to May of this year, Suffolk County Police Commissioner Geraldine Hart said.

He asked one of the victims to send him photos of herself in a bathing suit — which he paid her $5 for after initially promising much more.

“He handed her $2,000, had her count it and then paid her $5 for the picture,” said Hart. “He stated that the next time, there would be more.”

The 70-year-old asked the student to send more pics but she refused.

Meanwhile, Inswasty convinced a second teen, whom he paid to clean his home once a week in Islandia, to send him a nude photo for $150.

He offered her an iPhone X in exchange for having sex with him but the teen said no.

The girl cleaned Inswasty’s home from January to March. She ratted him out to another math teacher, while the first victim told a friend, who reported the incident to a guidance counselor.

The alleged creep has taught at Central Islip since 2006. He has been suspended with pay, according to ABC7.

He is charged with two misdemeanor counts of endangering the welfare of a child and is free after being issued a desk appearance ticket.

Hart left open the possibility of more serious charges, saying that the investigation is ongoing.

Police executed a search warrant on Inswasty’s home and recovered various electronics, including a camera, tripod, flash drives, iPhone, iPad and a computer, which authorities are reviewing.

“It’s really quite shocking, quite frankly, for an adult in that situation of trust to engage in this behavior and take advantage of these young women the way he did,” Hart said.

Inswasty couldn’t be reached.