Iketeru Futai is a nice ecchi comedy. If you really like a lot of ecchi stuff in manga, it should suit you nicely. But if you seek for a great story this isn't for you. It's just a bunch of funny stories. They have somenthing in common of course and the story is progressing nicely, but no surprises at al. But there's a lot of fun anyway.
Keisuke Saji right in the begining lands in bed with Koizumi Akira, so they really start from the point normally romance ends :P But right after that Koizumi tells Saji that it was just for fun and she tells
him to get lost. Pour girl, she chose the wrong guy to play with - the word "dumped" doesn't exist in Saji's dictionnary :)
The whole story is full of ecchi jokes. Saji just can't resist Koizumi's charm at all (she's really cute!) and she hates it in the begining. But Saji proves to be prepared for just about anything for Koizumi and she likes it a lot. One step after another they really begin to be close to each other.
The story isn't too bright, but it was quite a fun for me to read about Koizumi and Keisuke :) They really ARE a hot couple! Saji isn't that interesting, but Akira Koizumi is quite a girl. I want that kind of girlfriend too! XD