Complex sentence: Suzanne and Jay are having sex when suddenly she begins quizzing him about her makeup, confused by this Jay says she looks fine when suddenly Suzanne changes into the demon and shoves her thumbs into his eyes.
Split into simpler sentences: Suzanne and Jay are having sex when suddenly she begins quizzing him about her makeup. Confused by this, Jay says she looks fine when suddenly Suzanne changes into a demon, and shoves her thumbs into his eyes.