SS13 (just had his birthday) has become hilarious in his old age.

On his birthday, at the breakfast table, he says "SM, I FEEL different now that I am 13." I look at him like he is crazy and gave him some of the waffles we are eating. Then he puts his fork down and very quietly and seriously says "I'm actually kind of worried. I mean my underwear even feels tight."

I blush and reply "Perhaps you should talk to your Dad about that?"

DH, having finished getting ready for work, comes out to the breakfast table and, seeing the distress on SS13's face, asks "what on earth is wrong with you this morning? Oh, and happy birthday son."

I whispered to DH that SS13's underwear felt "tight" and I didn't think I could sympathize with him so my classy DH asks SS13 "Is it your parts that feel tight?"

SS13 says "yes, but also like around my butt and my legs ..."

DH goes over to SS13, stands him up, turns him around and looks inside the back of SS13's pants.

He smirks and says "You have SS11's underwear on."