People News Reese Witherspoon and Ryan Phillippe mark daughter Ava's 18th birthday on Instagram 09/11/2017 Reese Witherspoon took to Instagram over the weekend to wish her daughter Ava a happy 18th birthday. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Reese Witherspoon Ryan Phillippe
