Nutty Professor II: The Klumps

Sherman Klump has created a new de-aging formula. He is also in love with DNA researcher, Denise Gaines, developer of a method to isolate genetic material. Despite his good fortune, Sherman's major problem is his id alter ego Buddy Love. He is still ingrained inside him and has begun to periodically take control of his body. When Sherman tries to propose to Denise, Buddy takes over, both humiliating him and mortifying Denise.