"Kid Stuff" by Winston K. Marks is a science fiction short story written during the mid-20th century. The narrative explores themes of alien encounter and the consequences of unintended transformation, particularly reflecting on the experience of the protagonist, Kelley, as he faces his fears and evolving identity before a significant life event - his wedding. The story presents a blend of tension and humor, challenging the norms of human existence through fantastical elements. The plot centers on Kelley, who is about to marry his beloved Betty when he is unexpectedly confronted by two alien beings. These alien creatures, intrigued by human anatomy, begin to alter Kelley's body, transforming him into something unrecognizable. In a mix of horror and surreal comedy, Kelley struggles with the loss of his humanity, desperately attempting to comprehend the changes he undergoes at the hands of the aliens. As he grapples with his transformed identity, Kelley's thoughts are consumed with despair about how he can face Betty after such profound alterations. The story culminates in a poignant moment of self-realization, leaving readers with questions about identity, acceptance, and the nature of being human. (This is an automatically generated summary.)