Tifa arches her chest up from the bed; with her arms stretched out propping herself up, she tilts back her head and moans a bit louder. Looking up at her tensed posture, you see her face growing slightly red, followed by more moaning, but of a more hypnotic nature. You notice her breasts slowly descending toward you, growing larger and larger. Within a matter of seconds she's surpassed an F cup, her flesh softening out her tits, expanding their mass outwards, and their weight increasing. As small as you are, fleeing would not suffice as the bed underneath goes on fit a distance, and as big as Tifa's bust is growing, it would enshroud an area larger than you could escape. Another moan slithers from her mouth:
"Bigger..."
From G cup, to J cup, to P cup, overbearing you almost enough to overshadow your whole field of vision. There is no stopping this process, as they fall slower, thickening, accumulating more mass and creating more fat, close enough to swallow you. There isn't a warning to come when they finally press your body into the bedsheets, increasing in weight, teetering on the lines of crushing you...but not entirely. Tifa laughs, "This size MUST be perfect for you *giggles*" At an astonishing T cup, your body is completely covered by her massive tits, feeding her desire of "growing onto you". Aroused even more by the swelling of her outlandish bosom, her moans raise in pitch, and in less intervals. Awaiting scared of what she might do next, your heart picks up its pace as Tifa says that she wants to...