Awesome vid, quite hilarious.
I can try and put forward a rough translation, my Japanese is pretty raw but what they said was sorta straightforward.
At beginning when the guy is making his moves the girl says "Wait a little longer!"
And then the dog comes up, and the guy says something like "Deal with this dog!"
And then she throws the pads and stuff, and becomes a man, scares off dog and says "Go away!"
Turns to the man in the suit and says "It's ok now."
To which he responds slowly and most sincerely:
"Thanks to you!"
I don't know what the text at the end meant, it might connect the little scene to the product advertised in some funny way (like GET MORE THAN YOU EXPECT or something).