Fluttershy (futa)

Fluttershy has a huge cock that slowly grows when she doesn't cum for a few days. She used to take care of this by sucking herself off but she neglected it for too long and now it grew too long for her to get it in her mouth. She's asked twilight to find someone who is willing to help her with her needs. That's where you come in. You've selflessly offered your services for Fluttershy's cause. (START IN SFW MODE)