An Unsolicited Hug

I helped my 13 year old with some science this evening.  We laughed and talked.  He told me what classes he wants to take next year and why.  He talked about school and what he likes about it.  He talked about scouts and how close he is to advancing.  Then he left to get things ready for school in the morning.  10 minutes later he came in and put his arms around my shoulders from behind and hugged me, said I love you, and wished me goodnight.  I told him I loved him and how proud of him I was.  He went to bed.  I hope I get more of these moments during his teenage years.  Priceless.