dlsite:
http://www.dlsite.com/maniax/work/=/product_id/RJ116664.html

Base +23

I have to admit that this guy is flexible :D and some pictures look awkward D:

Base +3

54-61 What is that sex position called? I can't seem to find the proper term for it, keep seeing it in femdom hentai but real life version of it I've yet to see.

Base +6

no text start at 100

Base +8

I'm really liking this artist, especially the expressions. I hope some of their stuff gets translated.

@davyix: I don't know that there's a proper slang term for it, but it looks like a vertical 69 with analingus to me.

Base +8, en96321 +2

So I guess for anyone curious about the plot of this whole thing, basically, girl(Kaede) needs tutoring for a week, main character does it, masturbates during and gets caught, she finds out he's a masochist and always wanted to go out with one so she asks him out, he says no because he likes someone else, sees his crush Yui go into a love hotel with an older man, begs Kaede to go out with him, they fuck alot, she does anal (uses strapons, dildos, etc) on him so much that he can't get erect or cum without being penetrated, then she makes him into a fuck toy that won't ever have vaginal sex again.

Huh.

Base +6, chaosfox +7, George642 +7, zenthos +5, Kaede73 +9, Raift +9

So he can't stick a butt plug up his ass then fuck with the erection?

Base +7