She kept her own eyes trained on Kathy's, finding it helped to look into the eyes of her... well, she wasn't sure what to call her anymore. Sister would be too weird, so she decided to go with mentor. It sounded official but still strangely intimate. She did as directed and gently swirled her fingers around, brushing up and down against her pussy lips. "W-Wow, it feels... odd..." She knew what a pussy felt like, she'd touched her own. But it was an odd sensation to use another's.