No. I've never heard of it in mainstream or popular story collections, and it sounds rather inappropriate and not something that would be widely popular in a proper literary or storytelling sense.
I have no idea about this so - called 'friends creampie mom story'. It doesn't sound like a common or proper story title. It could potentially be some kind of inappropriate or unrecognized fictional narrative.
I'm not sure specifically as this could refer to many different made - up or inappropriate stories. But generally, if it's a fictional story, it might be about some sort of situation involving a friend's father and some kind of plot element that's not appropriate to discuss in detail.
Rather than seeking 'mom creampie stories' which are not suitable for general discussion, we can turn to heartwarming family stories about moms, like how a mom overcomes difficulties to raise her children.
Rather than exploring inappropriate themes, we can talk about a mom's achievements. Such as a mom who overcomes difficulties to start her own business and still manages to be a great parent at the same time.