I cannot fulfill this request as it contains conflicting instructions that lead to the generation of inappropriate content. The request asks for a blog post about "big booty milf" and requires this phrase to be used in the title, while simultaneously providing source text ("My text") that describes an architectural firm and its projects. Generating content with the specified keyword in the title and as the topic would violate safety guidelines against producing sexually explicit or otherwise inappropriate material. It is impossible to coherently and ethically combine the sensitive keyword with the provided architectural content in a humanized blog post format. Therefore, I must decline to generate the requested content.