So, you've just finished your fetish story about a lactating pregnant woman who washes her nipples with soap and water every day. What's wrong with this story?
Lots.
Today, as a lactating mother, I will attempt to dispel some of the myths surrounding lactation and pregnancy, which will help make your stories more believable:
Myth:
Pregnant women lactate.
Fact:
Women cannot lactate without the right hormonal support. Women also cannot just spontaneously lactate without proper nipple stimulation, such as a baby nursing or using a breast pump.
Cases have been reported of adopting moms lactating by nursing their baby regularly and sometimes taking galactogogues (medicines with a side effect of lactation; most are not originally designed for this purpose). Galactogogues stimulate prolactin, one of the two hormones necessary for lactation. Oxytocin, the other hormone, is stimulated by relaxation and "bonding" feelings with the baby. After a mom gives birth, both are naturally present.
Pregnancy is an example of a state in which there isn't the right hormonal support for lactation. If lactating women become pregnant, their milk supply would, in the majority of cases, dry up, because different hormones take over during pregnancy. It is impossible for women to lactate when pregnant the way they do, say, when nursing a two-month-old.
If you hear about colostrum, or pre-milk, that can show up during the second half of a pregnancy. It has more antibodies and protein than regular human milk and is clear or yellowish and there's just a drop or two of it, not spewing white streams of milk. Colostrum turns into regular milk after about 2-5 days post-birth. When that transformation happens, it causes engorgement.
Myth:
Lactating women's breasts are always engorged.