Delay the talk, and ask for a bath

"Y-yeah." You smile up at her, still coated in her cum. "Let's wait until morning, I guess. I would love to spend the night here if you'd have me. Do you have a bath, though? That preferably isn't made of your bodily fluids?" You wink, though it's not the easiest of tasks, with one of your eyes screwed shut to keep her thick cum out of it.

She laughs, and with a wink of her own, extends a hand for you to take, pulling her up and into a quick kiss. "I do have a bath, and I'm happy to let you use it, but there's some good news, and some bad news. The good news is that it's a massive tub, because I love to just sit and soak. The bad- or better- news is that since it's so big, it takes a lot of water to fill, so I can only fill it once a night." She leans in closer, whispering almost directly into your ear. "And I'm taking a bath tonight."

She leads you back towards the kitchen, but instead turns and opens a door to the left, into an almost excessively large bathroom. It's the same room that connects to the door right next to the entrance to the house, and true to her word, much of the room is taken up by a massive cast-iron tub, which she quickly turns the handles on, beginning to fill it with warm, clear water. Waving her arms, a quick line of sparks undoes the straps on her corset, allowing it to slide to the floor, and she does the same with her tights, leaving her stomach and legs bare, now completely naked in front of you for the first time since the cave.