Superman's Girl Friend, Lois Lane#10(1959)

Lois Lane has a fitful dream wherein she tampers with one of Superman's inventions after he warned her not too and he breaks off their relationship. Waking up and looking in the mirror, Lois notices that she is starting to show signs of age, and wonders if there is anyway to get rid of her wrinkles. Later that day she and Superman are seeing Professor Lockhart, a man who has invented a machine that can reduce the age of whatever it's exposed too. His machine succeeds in reducing a full grown chicken down to the age of a chick. While Superman and Lockhart are examining the results of the experiment, Lois decides to use it on herself to get rid of some of her wrinkles. She is later shocked to see Lockhart's chicken has regressed in age to the point where it's an egg again, however the results are reversed thanks to Superman's x-ray vision. Lois decides not to mention anything so that she doesn't get Superman mad at her for disobeying him and thinks nothing will happen. However, much to Lois' surprise she wakes up and finds that her age has regressed further, reducing her age to 16 years. Lois hopes to trick Superman into using his x-ray vision so that she can be cured without telling him what she has done. She goes to a teen dance that is hosted by Superman and attempts to get Superman to use his x-ray vision to count a jar full of jelly beans, however Superman refrains from using his x-ray vision and instead counts the beans via super-mathematics. Returning to her apartment, Lois finds that her age has regressed further and she is now 12 years of age. Dressing up as a Tenderfoot to be at another Superman appearance, she asks Superman to help her light a fire. However, the Man of Steel only agrees to do so if she does a good deed for the day. She tries to find the Tenderfoot mascot, a cat, but fails by finding a skunk instead. Although she failed, Superman agrees to help her anyway, and lights her fire by rubbing two sticks together. Now having de-aged to 8 years, Lois attempts once more to get Superman to use his x-ray vision by pretending to be lost and being taken to the police station. There she locks herself in a safe knowing the police will call in Superman to open it. Sure enough, when Superman does, he finds an infant Lois Lane waiting for him inside. He decides to take the baby to Lana Lang's place while they try and find the baby's mother. Lois is furious at being trapped in a baby's body, and worse that she is under the care of the woman who she is in competition for Superman's affections. After a time, Superman finally lets in that he's know it was Lois all along as the device took her picture, and the line about how only Superman's x-ray vision being the only way to cure her was a hoax to teach her not to be so impulsive. He explains to her that there is an antidote and delivers one final humiliation: she has to drink it out of a baby bottle.