Yep, it's another sweet moment for Chris Pratt and Anna Faris [1]! On Thursday, Anna tweeted a picture of the couple's son, Jack, who looked to be standing in a puddle. "Potty training is going so great! I'm a natural! @prattprattpratt," she wrote. Chris replied on Twitter [2] with the perfect response, saying, "Those are swim shorts. Put him in the pool and that's perfectly acceptable behavior. I'm proud of both of you." Take a look at Chris Pratt and Anna Faris's sweetest family snaps [3] on social media, and then check out the precious picture [4] Anna recently shared of her "sweet, brave men."