At first it was not very much noticable to the young girl, but then the pressure escalated for one moment, then paused and ceased to be. "what the heck was that?' She asked to herself, "Well I better get go, OH!" Was all she could say as the strange pressure suddenly exploded in her bosom again, causing her to grab at her pulsing breasts as the flesh there started to grow hot, sweat pouring out from every pore in her body now. "Oh..god! What is..happening!?" Glancing down at her now sweat dampened shirt, she could feel them as they gave off one huge bulge of pressure, causing her to throw her head back in wild pleasure. A low moan escaping her throat as she massaged her assets. "Ohhh..soo, good!" Then another pulse of growth hit her and her breasts strained hard against her bra and shirt, her nipples showing out as ever growing tents under her shirt.
"too much...pressure!" With futile attempts, her hands tried to rip her shirt from her inflating torso, but could not with the euphoria flying through each and every nerve in her body. Then with another spurt, her breasts suddenly bounced free of their containing and constraining bra and shirt, allowig them to bob. With them out, she could feel them actually rise up and firm tremendously through one final throbbing growth.
"Wow..." Was all that she could utter from her lips as she gazed upon her chest.