The "incest magazine" concept often refers to a brief period in the 1970s and 80s when some mainstream adult publications explored the boundaries of the incest taboo. Sexes: Attacking the Last Taboo - Time Magazine
: It is frequently used as a prop that a character discovers or shares, serving to introduce taboo themes or "normalize" the forbidden behavior within the fictional world. Fictional Tropes
The portrayal of families has shifted from idealized stability to realistic complexity across different eras. Family Dynamics - StatPearls - NCBI Bookshelf - NIH