G-Taste is an erotic manga series written and illustrated by Yagami Hiroki. The "G" in the title represents symbolically everything between "F" (fetish) and "H" (hentai); for this reason, there's usually a lot of focus on high heels, long legs, lipstick and so on.
Yagami Hiroki has also drawn other manga, including Futari ni Omakase, a series about two policewomen. These character have appeared in G-Taste as well.