2 girls who are friends get into sexual physical contact which eventually leads them to become become a yuri couple. In the middle this comic, 1 girl of the yuri couple becomes pregnant. She then later gives birth to a healthy female child.
@ssoott Yeah, you could debate that and I'm sure most people would agree that a futa's just a girl with a cock, but for tagging purposes females only is a tag for someone looking for a work that contains no dicks. It's a nice tag to have for the hardcore yurifags since they can add it to yuri to make sure there's nothing that contains both het and yuri, and it's a nice tag for people who just don't want anything to do with cocks in general. If people want dicks on their chicks, there's futanari, there's futa on fem, and there's dickgirl on dickgirl. Remember that tags aren't a super in-depth technical description of what goes on, they have certain connotations so people can search for a tag and find what they're looking for. It's the same reason people get mad when a work gets tagged yuri when it's about two girls getting fucked by ten dudes, and there's one page where the girls kiss. If you search yuri, you're not looking for a gangbang, you're looking for at least a few pages of girl-on-girl action.