Here's how it could go: Lana Craft finds a treasure, but removing it from its pedestal locks her inside the chamber and releases a tentacle monster that wraps her up. The monster then sends a couple of needle-like tentacles into her massive tits, injecting her with a serum that makes her O-cups grow to twice their normal size (her top gets ripped apart as a result of her breasts growing). The tentacle monster then keeps groping her gigantic mammaries and she even starts lactating. The tentacle monster even angles one of her nipples so she has to suck on it, drinking her own milk.
You can make up the rest from there.
