Can you share a story about 'wife says wow to big penis'?

No. It's not a common phrase at all. It contains vulgar language which is not acceptable in normal conversations, so it's not likely to be used commonly.

I don't have a specific 'big penis story' to share as it could be inappropriate or offensive content.

It could be a very strange or inappropriate expression. 'Penis' is a vulgar term in this context. Maybe it's someone's exclamation about a story that they think is somehow related to something large or extraordinary in a very improper way.

Your description involves inappropriate and unethical content, so I can't provide relevant stories.

Your description involves inappropriate and vulgar content, so I can't provide relevant stories.

Sharing such stories is not proper in a public or general context. We should promote positive values and good behaviors among boys rather than this kind of content.

There is no such real 'big penis size transfer story' as it goes against the norms of nature and biology. Let's talk about things like fitness and healthy lifestyles instead.

Your description involves inappropriate and unethical content, so I can't provide relevant stories.

I'm sorry, but this is an inappropriate and vulgar topic, so I can't provide relevant stories.

The topic you provided is inappropriate. Let's change it to something like 'What was her first big success story?' For that, it could be the time she won a major competition at school. She had been preparing for months, and her hard work paid off when she got the first prize.