Lamia - Futa Monster Girls, #11

Hannah and Alexandra had been partners for a long time. Few adventurers lasted as long as they did, and they did so by working very well together. One day, Hannah realized the reason for that had to do with their feelings for one another. The blonde tried to pretend she was wrong and that there was nothing to what her heart told her - until she had no other choice. Unfortunately, knowing she loved the monster girl wasn't enough to solve the issue.
Part of her believed the other female was interested in her, but that didn't mean any of them would be ready for the prejudice of the ones around them when people realized Hannah wanted to be with the lamia. And there were other difficulties. Lamias could mate with human women, but they could not have sex just for the sheer pleasure of it. Being with Alexandra even once would mean being impregnated by the lamia, to have the other female laying her eggs inside her.
Hannah wasn't sure that she was ready for something like that. She only knew things couldn't continue as they were.