User blog comment:SayuriDarling/The Mark of Athena Official Discussion/@comment-67.7.101.54-20121121164325/@comment-5774152-20121125045644

This is what it said from the book:

"I am? both Aphrodite and Venus. Unlike many of my fellow Olympians, I changed hardly at all from one age to the other. In fact, I like to think I haven't aged a bit! Love is love after all. Wheather you're Greek or Roman. This civil war won't affect me as much as the others."

-Aphrodite/Venus

I think she is both(obviously) but I dont think Piper is.