@cryptovexillologist @Gaypow there's a book called Einstein's Bridge that does something similar.
An alien communicating with physicists as the SSC through a microscopic wormhole decides that it's time to meet up in person, so they construct an 'egg' at the Earth end that produces a white, blonde, blue-eyed girl.
"After analyzing your planet's media, I chose this form as the one most likely to be deemed nonthreatening"