More mental TF here than physical, a rare treat for the minority of the minority here.

tags: parasite, possession, transformation, hermaphrodite, futanari, body theft, identity theft, worm, impregnation, birth, gender, mind control, rape, Incest, sleeping

Start: https://chyoa.com/chapter/Introduction.185439

Story map: https://chyoa.com/story/An-Alien-Attachment.6532/map