From Seikon no Qwaser volume 17
From Seikon no Qwaser chapter 46 (now translated).
Edit: added an extra Katja x Mafuyu page from chapter 47
Updated this popular Katja x Mafuyu image set with two more images.
Also, make sure you vote on the new poll on the main page http://deliciousyuri.tumblr.com/
Yuri scene from Seikon no Qwaser season 2 episode 4. Warning: contains watersports (as in, peeing).
Streaming link: http://www.mediafire.com/watch/l9f2sym2pdh6bjd/qwaser4.mp4
I was bored so I put up a sexual orientation poll on the front page http://deliciousyuri.tumblr.com/
Also: reuploaded the part from Qwaser season 2 episode 3 where Hana molests Tsubasa.
Streaming link: http://www.mediafire.com/watch/vriyj25c05hmrn6/qwaser3.mp4