For those of you thinking: "You know what this needs? A scene of Lily-san getting tentacle-banged!" Good news! The original version has that, so go check out the raws.
A note on continuity. The original story pretty much has to happen after the end of the anime (since they both know that Sakurai is Liliy online). This rewrite, however, has been tweaked so it fits into the anime. It's intended as a cut scene from the episode where Koiwai-san takes Morioka-san out for drinks and she passes out at the bar. In the anime he drops her off at her place, then sends Sakurai the picture he took of her passed out before heading home. In this rewrite he has a little fun with her at her place before leaving. I've also adjusted the dialog to make it a bit more consensual. (I'm not a big fan of the whole "I like it, but I'll pretend not to," thing.)
Note about names. MoriMori translates into something like "Alot of X". In the show, Koiwai-san gave Morioka her nickname over the phone because she always had "alot of work" on her desk and was working overtime. But when he finally met her, he noted that she was pretty morimori in the breast department as well. Basically she has a tendency to take things too seriously, bite off more than she can chew, and burn out. I liked how that theme continued here with her wanting more pleasure than she could handle too.
Final note, although I know we're supposed to root for Morioka X Sakurai, I found myself thinking that MoriMori-Chan x Koiwai-san might not be so bad. After all, he's the one who gets the biggest reaction out of her and drags her out of her shell. I also have a feeling that, if the anime continued, he'd eventually offer her a job and get her working again. There's something good about how he pushes her to be her best self. And I think she'd have alot to offer him in return (getting him to be a bit more serious and act a bit more appropriately). They'd balance each other pretty well that way. Whereas, she and Sakurai are both too serious and masochistic to balance each other. I also didn't like how much Sakurai lied to and manipulated Morioka. Although he's doing it in an attempt to help people, it's still kind of off-putting.