Katsumi giggled and squirmed on Niariel's lap as her friend tickled her tummy with her fingers.<br/>"No!  Nia-chan...please stop..that tickles."  The other sensation of her hand stroking her tail provided an interesting contrast though, one relaxing her with pleasure, the other exciting her and making her wriggle.  After just a short while, Katsumi's tiny face was bright red with embarrassment, her new friend having the fox girl's emotions completely at her mercy.