Anna squeaked softly when she felt the wandering fingers dip into her thin bikini bottom and start rubbing along her already wet slit. She paused for a moment, letting out a quiet moan, before going back to sucking on her father's cock enthusiastically. Her inner lips twitched and she shivered in pleasure, but she wanted him to feel the same pleasure. She opened her mouth wide and slid more of his thick cock into her mouth, trying to fit as much as possible inside.