You and your sister hear an uneasy gurgling. Up until now, Daisy's stomach had apparently been taking it easy on you. But now that you've begun to break down a little, her muscular contractions become much, much stronger. Your soft bodies easily melt and squelch as you're liquefied almost instantly.
Thankfully this is painless. Your consciousness is reduced significantly so you can only experience the goopy, sloshy weirdness as you're stretched out through Daisy's intestines. As she absorbs you, your consciousness fades, her very soft, velvety walls squishing you with muscular pressure until you're pulverized into poop.
Speaking of which, the puppy has finished her massive meal, become a massive doggy with massive breasts, a puffy doggy pussy, and a very plump anus holding back a massive shit. Daisy politely finds a spot outside to excrete your remains, laying out a very heavy, steamy hot log of waste. She follows up with two more, before not-so-politely urinating over everything and then loudly farting before returning to the house.