Reese Witherspoon gushes she feels ‘so lucky to be’ to be Ava, 21, and 17-year-old Deacon’s mom

Reese Witherspoon shared a sweet selfie with her eldest children 21-year-old Ava. Deacon, 17, who she shares with ex Ryan Phillippe, on Saturday. ‘Gosh, I’m lucky to be their mom,’ she captioned her latest Instagram post.Which showed her smiling as she sat between her son and daughter. While spending some quality time with her kids,…