I'm looking for the name of a hentai comic about a store that sells semen and the owner is a futanari girl?

I'm pretty sure it's not on fakku and luscious. It had at least over 100 pages, I started reading it a few years ago and never got to finish it and i can't recall the name of it. But this girl finds out she really likes the taste of semen and gets addicted and goes to the store and ends up having a thing with female shopkeeper. I've been looking for this comic for a long time, I hope you can help yahoo answers