Responses

i'm sorry if this sounds strange, and overly analytical, but i don't think the uke actually urinated, it seemed like he was about to, but then saw the seme and decided to leave before actually beginning because he said he felt uncomfortable, zipped up his pants, and then it got stuck.
Conclusion: there was no pee pee in the first place.
WAIT
Does he wash his pee pee after wee wee??
*gasp
( Σ(っ°Д °;)っ