Instantly you feel atrong pain in your chest and put your hand on it. Suddenly you feel that your chets is a bit... soft.
You put away your hand and see that your chest is expanding in a rapidly speed. At firts it is an A-cup, then a B-cup, a C-cup and so on.
At the end it stops by a double E-cup when the fabric of the bra is stretched to their limits and is really tight.
These huge breasts weight a lot but before you can corrct your balance you fall down on the ground and squeeze your new breasts. Immidiately a wave of pleasure runs through you body and to your great astonishment you begin to lactate.