![Singer Cyndi Lauper with lavender hair and wearing a sparkly black jacket](https://www.amny.com/wp-content/uploads/2024/05/Cyndi_Lauper_Gershwin_Prize_2023.jpg?w=1200)
May. 30, 2024 By Barbara Russo-Lennon Legendary pop singer and Queens native Cyndi Lauper’s troubled son Declyn “Dex” Lauper Thornton is being sued by an ex-girlfriend for sexual assault that left her feeling “powerless and in fear” for her safety, a Manhattan Federal Court lawsuit filed on Tuesday alleges. The harrowing assault occurred on…