So grown up! Reese Witherspoon celebrates son’s birthday with heartfelt post
<p>Reese Witherspoon is one who likes to keep a lot of her family life private. </p>
<p>However, for her eldest son, Deacon’s sweet 16th she posted a beautiful message along with a snap of the two to celebrate. </p>
<p>"Happy 16th Birthday to this guy whose bright smile makes every day better!" she wrote.</p>
<p>"Kind, compassionate, hysterical, friendly, and talented," Witherspoon continued. "I'm so lucky to have a son like you!"</p>
<p>Witherspoon, 43, shares her son Deacon with ex-husband Ryan Philippe, who posted his own message to Deacon on his Instagram story the night before his son’s milestone age. </p>
<p>“The edge of sixteen,” it read. </p>
<p>The pair also have another child together, 20-year-old Ava who is their eldest. </p>
<p>Witherspoon and her now-husband Josh Toth share a son, Tennesse, who recently just celebrated his seventh birthday. </p>
<p>Reese has proven to have some seriously strong genes because her three children look so similar to her it is unnerving. </p>
<p>Ava also took to Instagram to share a heartwarming post for her younger brother. </p>
<p>“Happy happy sweet 16 to my cooler-than-me little brother with a heart of gold! I couldn’t have gotten any luckier than to have your humor, love, and patience in my life,” she said. </p>
<p>“You are always one of the funniest, most thoughtful, peaceful people in the room, and I couldn’t be prouder as your big sister of who you are and who you’re becoming. Happy birthday, D!”</p>
<p>Scroll through the gallery above to see Reese’s three kids, Ava, Deacon and Tennesse all grown up! </p>