Former Happy Days hunk Scott Baio knew his romance with a young Pamela Anderson was doomed when she announced she was getting her "beautiful breasts" enhanced. In a new autobiography the actor is shopping around Hollywood publishers, Baio reveals he was stunned when his then-girlfriend told him she was going under the surgeon's knife in 1989. In an extract from the book, obtained by website, Baio writes, "She already had large, beautiful, natural breasts. "At that moment, I knew our relationship would soon begin to crumble. Pamela had finally gone Hollywood." Baio also reveals Liza Minnelli once offered to carry his child. He claims she told him, "I really want your sperm. You're a talented, good-looking Italian guy. That's what I want my child to be."