A trifecta
When a guy goes from the grandma's crotch to the mom's crotch to the daughter's crotch all in one night. That’s a trifecta.
He pulled off a trifecta: grandma, mom, and daughter, all in one night.
That guy went from the old lady to the middle-aged woman to the teenager, trifecta achieved.
They said he did a trifecta: grandma, mom, and daughter all at once.