On a hot spring trip date just the two of us, I'm with Kaname-chan, a casual fling who has a crush on me, an old middle-aged guy. She's a perverted M-girl whose nipples are extremely sensitive and trained, getting excited easily when teased. She listens to anything I say, is incredibly shy, and on top of that, she has an excellent personality. Today, I brought toys, and I'm going to pamper her so much that her nipples will swell up...