Thirst alert: Zac Efron is celebrating his brother Dylan’s birthday by frolicking in a waterfall and the amount of wet stuff cascading over rock-hard abs is almost too much for Instagram’s like-meter to handle. Scroll through the pics below for details. View this post on Instagram Happy birthday @dylanefron! Honestly, I never in my wildest … Continue reading Zac Efron and His Bro are Making Instagram Totally Wet