If we assume 'cock' is referring to a rooster, it could be 'Mom measures my young rooster.'
One way could be 'Beta submits a story about a gay relationship.' This gets rid of the inappropriate terms and makes it more understandable.
We could rewrite it as 'Dad, I'm not Mom. Stop that inappropriate behavior.' This makes it more general and appropriate.
The story about mom seeing me arrive.
Perhaps 'A mother's improper actions are part of a concerning story'. This tries to convey a similar idea but without the vulgarity.
You have such a lovely item for me.
Another option is 'In a CBT story, no excessive dominance is allowed'. This rewrite keeps the focus on the CBT aspect and clearly states that there should be no extreme form of dominance in the story, which was what the original phrase was trying to imply in a rather unclear and inappropriate way.
We could rewrite it as 'The Story of a Rock - Hard Object and Its Transformation'. This way, we remove any potential inappropriate connotations and make it more straightforward and easy to understand.
Perhaps it was meant to be 'The girl had a couple of stories' which is a much more common and understandable phrase.
It's a very strange and unclear statement. 'Cock' has inappropriate connotations in this context. Maybe it's a wrong or made - up phrase that doesn't really have a proper meaning as it is.
A story about a stepmom and a choking incident.