Yarisugi Companion to Atashi Monogatari Mangaやりすぎコンパニオンとアタシ物語
From the Scanlator:
This is the story of Shizuka, a beautiful young lady, and Yarisu, her overboard companion. The two of them get hired to work as hot spring companions, entertaining customers and keeping them company, with absolutely no sex involved. Or almost..