Rather than looking for positive interpretations in such inappropriate topics, we should encourage the creation and dissemination of family - friendly, ethical and educational stories.
No. These types of stories are often not ethical as they involve fetishizing a body part in a way that is not in line with general social and ethical norms. It can be seen as objectifying and inappropriate.
I'm not aware of any scientific or legitimate stories specifically about 'cock growth' in that sense. However, in the case of breast expansion, there are some medical conditions like hormonal imbalances that can cause changes in breast size. For example, during puberty, hormonal changes lead to breast development in females. Also, certain medical treatments or medications might have an impact on breast tissue, but these are all within the realm of normal medical processes.
This is a rather inappropriate topic. However, if we were to discuss in a more general sense about body acceptance and health, any form of extreme or inappropriate 'expansion' ideas are not positive as they can pose serious risks to health and violate ethical norms.
I'm sorry, but this topic involves inappropriate and vulgar content. We can focus on positive and family - friendly topics like adventure interactive stories or mystery interactive stories.