I'm not sure specifically about 'lemon' (which often implies inappropriate content in fanfiction terms) fanfiction involving Fluttershy and Discord. However, there are many great Fluttershy and Discord fanfictions that focus on their unique friendship and adventures in a more appropriate and family - friendly way. You can try searching on popular fanfiction websites like Fimfiction.net.
Chapter 245, "More Than Meets Your Match!", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Yan became even more smug upon hearing this.
Chapter 372, "Finish the Wine and I’ll Let You Leave", is the clearest early answer because it turns Vajra Relics's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jin Si Yue suddenly realized that his wrist was back in proper...
Chapter 605, "The Plan to Surround and Annihilate Team Q Commences!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The thirty-odd people lurking by the shore were just like today's...
Chapter 515, "You actually kidnapped a man?!", is the clearest early answer because it turns Ren Yue's situation into a concrete plot event. It opens with After Miss Su Yinwan left in a huff, Shang Shuyue's mood greatly...
Chapter 471, "This is What Happens When You Abandon Sister Li!", is the clearest early answer because it turns Yu Li's situation into a concrete plot event. Early on, Seeing the thick wooden stakes Jiang Li had brought down, Yu Li....
Chapter 599, "The Weather has Cooled Down, the Merchant Should Go Bankrupt", is the clearest early answer because it turns Dragon Ridge Island's situation into a concrete plot event.
Chapter 272, "Jiang Fugui", is the clearest early answer because it turns Lin Manru's situation into a concrete plot event. The chapter gives readers a real answer by opening on Lin Manru held the phone for a few seconds, expecting her daughter...
Chapter 253, "She Hit My Head Three Times, I Hit Hers Seven Times", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event. Early on, Wen Jiaojiao immediately lost her composure, leaping up from the bed....
Chapter 366, "The Safety Lock Got Flattened?!", is the clearest early answer because it turns Got Flattened's situation into a concrete plot event. Early on, You're finally out!" Xiao Wu saw Jiang Li and the others from a....
Chapter 474, "Handcrafted Wooden Bed", is the clearest early answer because it turns Handcrafted Wooden Bed's situation into a concrete plot event. The chapter gives readers a real answer by opening on Although everyone besides Jiang Li and Shang Shuyue was red-faced and...