Pervy changes

Next he started to doff his clothes. Finally he was standing naked in front of his wife and son.

"And now, watch me for the changes!" he continued as he was pointing the device at himself. And fizz!

Suddenly there was a bright flash, then a pink cloud formed around Walter, which then totally blocked everyone's view.
"Oh God. What's that smell!" Rebecca gagged, covering her nose.
"That's horrible, kinda smells like a beaver, I think." Jacob agreed.

Finally the smoke cleared and they saw...