I asked him, and he said it's ok to give links to the entries.
Here's his dA for people too lazy to look up "Matsu-sensei". http://matsu-sensei.deviantart.com/
And here are the two entries: http://www.deviantart.com/deviation/37270234/ and http://www.deviantart.com/deviation/37270955/
Ok, first off, I have a confession to make. To people who saw "my" drawings on the forum here before, I didn't draw them. My friend Matsu-sensei drew them, and I posted them without his knowing. He found out about it one day and was pissed off at me, so I removed them. He said that the drawings he did weren't meant to be sexual and he didn't want people thinking he was a sexual artist. I understood, and I felt bad for ruining his rep.
But recently, he drew a comic involving BE. I asked him about it this time, and he said it'd be ok, seeing as the characters are ones he just made up and the comic wasn't serious anyway.
So... here it is, and the picture before it which led to the comic.