Dokusenjima - Anta o Suki ni Naru Kurai Nara Haramasareta Hou ga Mashi yo! by WitchFlame - Adult Sex Game

The protagonist has a special ability: "Forced Love". Anyone in the area of effect will have more and more goodwill towards him and ultimately, becomes an obedient slave. Using this power, he acquires many benefits from powerful and wealthy people.

One summer, he decides to invite 4 girls to his own paradise island. However, it's a trap. In order to leave this uninhabited island, they must bear his human. "Either you leave as a mother or become my woman. There's no time to think!"