"No you'll see. Actually you won't as you'll be fat on my tits when I'm done with you" she responds. "Won't be long now, nobody survives Grebda's belly for more then 10 minutes. I am a champion digester on Amazonia."
Within mere seconds her stomach starts to get to work sensing it's inhabitant. This is nothing like what your sisters stomach was like. Her alien physique is much stronger, and experienced at digesting big meals. You start to panic and thrash as the walls violently assault you and coat you in her acids. You don't even last 2 minutes before you're gone completely.
Grebda returns to her home-world and tells the others of her findings. "They're a bit small, but will offer little resistance I believe. They are definitely digestible."
Not long later the invasion commences and human race is completely eaten. All because you couldn't resist the stomach acids of one alien.
