This should’ve been in an October issue, but it’s actually from the February 1958 issue of Jem, “The Magazine For The Masterful Male”, one of the countless Playboy knockoffs from the late 1950’s and early 1960’s.
“Broom And Board” by R. Fred Arnold, is the “authentic, never-before printed story of the life and times of a witch”. Authentic it’s not, though 1950’s-funny it aims to be. Young Beaulah Broome of Coffeyville, Kansas is more or less a normal small-town teen who sometimes hears spooky voices and other-wordly laughter. Tossing and turning in bed one night, she awakes to find a witch perched right on her own footboard. “At least, I imagined it was a witch. She had on a peaked hat and long grey robes. There was a broom clutched in her hand. But far from being the weather-beaten hag pictured in the usual drawings of witches, she was a beauty. The grey robes fitted tight over a voluptuous figure. The peaked hat made her long face and laughing eyes even more beautiful.” With a sprightly “Hi-ya, witchy,” the visitor welcomes Beaulah to the IWW (the International Witch Workers) who’ve been monitoring her since childhood. Young Beulah is whisked away for training at…Wichita State University.
You can actually read the whole story online (the entire February 1958 issue of Jem is at Flashbak (flashback.com), “Where Everything Old Is New Again”. Beulah masters the art of infiltrating other women’s bodies in order to seduce men, but if you’re expecting something 1950’s-naughty, be warned: the tale’s strictly PG rated, if even that. Nonetheless, it did feature a nice (though uncredited) illustration.