Ishi slid in behind Akiko.  "Oh, my...such a bad, naughty little girl, walking around like this...I think someone's going to be earning a little teasing as punishment," Ishi whispered into Akiko's ear.  Coming up from under her arm, Ishi circled one of Akiko's nipples with a single, slender finger, while using one on the other hand to trace the outline of one of Akiko's ears.  She pressed her bust into Akiko's back, letting her feel Ishi's huge boobs.