Quite a funny little story, I liked how Taka-chan tried, yet failed, at being the lead in their relationship ^__^ Makes a change from the usual dominant seme, and it was refreshing seeing an uke who was just as eager to have sex as well. Plus I liked how Ken had two sides of him, the cutesy innocent side that made him seem naive, then the feisty and more erotic side too.
Unfortunately, as others have mentioned, this does end quite abruptly. I really think it needed a final chapter to actually show their first time. But it was still pretty cute despite the slightly rushed ending, so if you want a light and quick read, then this'll do.
In response to Otakuness' comment, no, Taka doesn't leave his finger in.
After their very brief hug, Ken apologises that due to him leaning forward to hug him, Taka's finger slipped out. And then they cuddle. So no, he doesn't just leave his finger in him. That would hardly be comfortable for either of them.
But the last sentence you wrote about "dumpsites" is actually pretty offensive. I assume you knew this was BL when you started reading it right? If so, then I'm sure you realise that anal sex is standard for gay couples (and some heteros too). So you're little comment is basically insulting everyone who engages in it. Perhaps you meant it as a joke, but still, I don't think it's really appropriate.