It might be ok but if you popped her seal once I'm sure you will pop it again but next time it will be easier and so on. You need to be careful you don't pump too much next time!
The problem is, the more times you pop her seal the slacker the seal will become and the potential for a bit of a leak increases. I don't need to tell you how horrible a leak down by her seal will be either I guess. Depending where you are and what you are doing at the time, a leak around her seal could be well nasty for you as well as her.
To avoid nasty consequences of a leaky seal, first I'd put some lubricant on your finger and gently rub it around her seal making sure it is nice and smooth and without any creases, tears or folds then I'd rub some lubricant onto the piston and rub it gently against her seal before pushing it back in, all the way and leave it there.