Kim lets you sleep in under her titanic package.

Original Author: That Boi

You awake to a soft swaying motion that must be Kim walking. Your attempts at movement are suddenly met with soft resistance. 'Oh yeah. I'm still in Kim's panties...' You thought. You try with all your might and finally pull your right arm free from under your big sister's giant cum factories.

Outside, Kim, wearing nothing but her flannel robe and her panties, stands at her bookshelf and looks for something to read. After picking one of her novels she walks over to her chair.

Suddenly you feel your prison tighten as Kim sits down and crosses her legs, only constricting you more. All you can do is squirm and try to get your big sister's attention. You hear Kim moan slightly before she reaches into her panties and gently pulls you out.

You gasp as you take your first breath of fresh air in a while and Kim giggles lightly as she places you on her thigh before crossing her legs again. "Good morning, baby brother. I decided to let you sleep a little late. How are you feeling?" Kim asks softly, smiling at you.

"I feel a lot better. Thanks for helping me..." You yawn, smiling back. Kim rubs your head with a finger and adjusts her glasses before going back to her book.

You can't help but marvel at how easily Kim is able to cross her legs with the giant rod between them, the bulge in her panties poking out from between her thick, smooth thighs.

"I suppose you want an explanation?" Kim asks. "I can't really blame you... Alice and I are... How do I explain this... We're what's called 'Futanari'." Kim explains. "That means we have both male and female reproductive organs. We have vaginas but we can't get pregnant. And our penises are bigger than any natural male's." Kim says, setting her book to the side and taking a sip of the coffee she had made earlier.

She looks down at you, almost appearing as a goddess as the sunlight behind her shines through her brown hair and reflects softly off her skin. "Like I said, you have to keep this a secret. Nobody can know, okay?" You nod up at her and she smiles warmly. "I was planning on heading to the library in a little while. I need to return a few books anyway and maybe we can find something to help you. But for now I'm just gonna read for a while because they don't open for another few hours. If you want I can read aloud and you could listen." Kim says, picking her novel back up.

Your big sister smiles as she begins reading softly. Her soft voice soothes you and makes you feel safe as you lean into Kim's soft thigh...