Piper McLean is the daughter of Aphrodite (Greek Goddess of Love and Beauty) and actor Tristan McLean and is one of the main characters in the 2010-2014 book series The Heroes of Olympus (sequel series to the 2005-2009 book series Percy Jackson and the Olympians).
She serves as the love interest and later girlfriend of Jason Grace.
She was sent to Wilderness School by her father after he discovered that she had stolen a car (which she had did to try and get his attention as due to his busy schedule, he cannot spend time with her) where she met and befriended a boy named Leo Valdez (son of Hephaestus, Greek God of Fire), who had been sent to the school due to running away from his foster homes. Piper originally believed that she was in a relationship with Jason (a demigod son of Jupiter, Roman God of the Sky), but later after being brought to Camp Half-Blood (a demigod training camp), she discovered that it was all a trick of the Mist.
She eventually started an actual relationship with Jason and helped him, Leo, Percy Jackson (son of Poseidon, Greek God of the Sea), Annabeth Chase (daughter of Athena, Greek Goddess of Wisdom and Battle), Hazel Levesque(daughter of Pluto, Roman God of the Underworld) and Frank Zhang (son of Mars, Roman God of War) in battling the Earth Goddess Gaia and her children the Giants.
Then she helped Apollo in the Trials of Apollo series