Tastes Like You Only Sweeter
From Shousetsu Bang*Bang Wiki
Tastes Like You Only Sweeter is a story written by Aosora Hikaru. It ran in Special Issue 8 and can be found at http://s2b2.livejournal.com/242391.html and mirrored at http://www.shousetsubangbang.com/mirror/tastes-like-you-only-sweeter/.
Summary
Yvette and Eileen work for an espionage group with no name. They're trying to work out being lovers as well as work partners.
The scummy guys always went for the lesbians. Threesome? They were all over that.