Awkward indeed, but I waited for it (from the moment she touched his feet I knew where it was going... :D). I wondered all along if Shu's really attracted to girls and if it'll affect his wish to be a girl somehow. I guess he just jacked off in that toilet? Heh, I'd say it's normal for a young man, but it'd sound wrong considering Shu's situation.
I love Shu and Maho's relationship, I lol'd when Shu asked Maho how are things with Seya going only to avoid the topic of him and Anna, and even thought "Not that I want to know..."
Ebina-san's reaction when he saw that woman he had a marriage meeting with was priceless. I thought "it would truly ruin my life" was a bit of exaggeration though.