Here is an image of the Seigaku regulars that many people like. Almost half of them have a hand on someone. I like how they seem to have the original traditional pairings, so this could go under the themes of Seigaku and couple shots.
WARNING: For those who haven't seen the PairPuri DVDs, the following images are mostly spoilers.
I'm going to post images some of us missed for past themes, so this post can be seen as non-theme or several weekly themes. Actually, I was the one who forgot many of the following images.