One story could be that the wife noticed her husband's lonesome friend was going through a tough time. So she started inviting him over for dinners regularly. Over time, the friend felt more at home and shared his dreams with them. Eventually, with their support, he found a new job and a new lease on life.
Rather than seeking such stories, we could shift our attention to healthy relationship stories, for example, how a couple overcomes difficulties together and grows stronger in their marriage.
I'm not sure what exactly you mean by that specific phrase. It could potentially be a very inappropriate or made - up term. If you mean a story about a friend and a girlfriend in a more general sense, it could be about how a friend's relationship with his girlfriend is going, like how they met, their adventures together, or challenges they face.
As the term 'creampie' is inappropriate in this context, let's just focus on a positive story about a friend and a girlfriend. Yes, for example, a friend might introduce a person to their future girlfriend at a party. And then, as the relationship develops, the friend continues to support them, gives good relationship advice, and helps them through tough times, making it a positive story.
Rather than discussing such improper topics, we could explore stories about how a husband and wife support each other in their careers and personal growth.