A young time traveler from the future visits the most fascinating person she can think of in the past—that would be playboy George Rice, coincidentally her great-great-grandfather—but she won’t tell George what makes him so fascinating.
That left the incest angle, and I asked him about that. He says that making it with your great-great-granddaughter from the twenty-first century is not much different from making it with your clothes-designer neighbor from across the hall.

Variants

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  1. “The Girl with Some Kind of Past. And George.” by William Tenn, in Asimov’s Science Fiction, October 1993.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by William Tenn