Anna approached Kitty, who was lounging comfortably on the bed, her eyes half-closed in relaxation. Noticing how adorable Kitty's bellybutton looked, Anna couldn't resist and asked with a smile, "Mind if I kiss it?" Kitty chuckled softly and nodded. Anna leaned down, placing a gentle kiss right on Kitty's bellybutton, and as soon as her lips touched it, Kitty burst into laughter, squirming playfully. Amused by her reaction, Anna started tickling Kitty, focusing on her bellybutton at first. Kitty's laughter filled the room as Anna's fingers danced across her skin, then slowly moved to her back, continuing the playful tickling session. Kitty wriggled, giggling uncontrollably, as Anna enjoyed every moment of their lighthearted fun.