DS2 is 12 and half. Not the most mature pre-teen. Yesterday told me his penis is weird when urinatibg; I had a look and indeed it's weird! As he sees, penis inflates like a big bubble. No pain, no blood, nothing else. The bubble goes down as soon as weeing stops. Don't remember older DS having this. Anyone seen similar? With no pain/smell/discharge I'm not thinking it's an infection. Any thoughts?