Srimad Bhagavatam mentions this incident, and would not point out rape at all. Instead it can be pleasurable and play involving them. I do note Shri Ayappa will be the son of Shri Shiva and Shri Mohini, and so she is likely his spiritual wife Which explains why he caught https://kamadevmohinimantra32098.digitollblog.com/36195628/5-simple-statements-about-mohini-explained