This kind of question is not appropriate and does not contribute to any useful or healthy conversation. Let's direct our attention to more appropriate and constructive themes.
I think such themes might revolve around exploration of sexual desires and personal preferences. But this kind of topic is quite vulgar and inappropriate.
My first time sucking on a mint candy was quite memorable. I found a mint candy in my grandma's drawer. It had a strong minty smell. When I put it in my mouth and started to suck, the cool and refreshing feeling spread through my mouth. It was like a little burst of freshness, and I felt really awake and energized.
It depends on how we define'mom sleep sucking stories'. If we think about moms who breastfeed their babies at night and are often in a state between sleep and wakefulness while the baby is sucking, then it can be considered common. Moms are usually exhausted, and their bodies adjust to respond to the baby's needs even while they are sleepy. There are many such stories among new moms where they might not fully remember the details of the night feedings because they were so tired.
Well, 'toe - sucking fan fiction' sounds like a very unique and perhaps disturbing type of fan - made writing. Fan fiction typically draws from popular media sources like movies, books, or TV shows. However, this seems to be a very abnormal and unappealing topic within the realm of fan - created stories. It could potentially be some sort of fetish - related fan fiction which is not in good taste.
If 'first sucking stories' is not about babies, it might be related to the first time someone tries a new type of drink through a straw (sucking). For example, a child's first time sucking on a colorful fruit smoothie through a straw at a café. It can be a memorable experience with the new taste and the novelty of using a straw.
A sucking nipple story could refer to a story related to a baby sucking on a mother's nipple for breastfeeding. It's a very natural and essential part of how infants get their nourishment.
One could consider the story of the Virgin Mary and baby Jesus as a form of a sucking nipple story in a religious context. The image of Mary breastfeeding Jesus is a symbol of her role as a nurturing mother.