Yes, there are likely many out there. You can start by looking on popular fanfiction websites like Archive of Our Own. Just search for 'Jessie Luke and Jessie kiss' in the search bar, and you should be able to find relevant stories. However, the quality can vary greatly, so you might have to read through a few to find one that really suits your taste.
One possible plot could be that Jessie and Luke are friends who gradually develop deeper feelings for each other. They might go through some adventures together, face some challenges that bring them closer, and finally share a kiss in a moment of realization of their love. For example, they could be working on a project and start to notice little things about each other that they find endearing.
Their relationship could develop through mutual support. Since they are having a baby together, they would need to be there for each other. For example, Luke could be there for Jessie during her morning sickness.
They might like reading, painting or playing sports. For example, Jessie could be into reading mystery novels which stimulate her imagination. Luke may enjoy painting landscapes as a form of self - expression. Emma might be fond of playing tennis to keep fit.
One day, they decided to go on a picnic. They found a beautiful meadow near a lake. Jessie brought delicious sandwiches, Luke had a frisbee which they played with for hours, and Emma brought a guitar and sang some lovely songs. The sun was shining, and they just had a great time enjoying each other's company.
You can try fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fan - created works, and there's a good chance you'll find some great 'jessie and luke fanfiction' there.
One great 'jessie and luke fanfiction' story could be about their adventures in a new city. They might explore hidden places and meet interesting characters together.
One popular Jessie and Luke married fanfiction might be 'A New Beginning'. It shows their life after getting married, dealing with daily challenges in a sweet and humorous way.
They might have stumbled upon it while searching for something related to their hobbies or interests on the internet. Maybe they were looking for more stories about a certain genre like mystery or romance, and fanfictions popped up. They then discovered that fanfictions can offer unique and diverse interpretations of the things they like, and that's how they got into loving it.