I myself was afraid Astarion would want to become a half-illithid (when the Emperor gives larvae). He used to be ready to grab any power, and had almost a full set of larvae in his head (good thing for the companions it doesn't end up doing anything), and was ready for scandal, disapproval, or to boot - crush this scum. But he made his opinion on the matter clear.
Throughout the game he is disgusted by them and only likes his worm for the power it gives him. I figured he'd not want to give up his good looks for a few extra benefits. My Tav was the same. If you decide to consume another worm first, he is relieved you didn't end up with tentacles and feels encouraged to 'help himself' too because of no side effects.
Originally Posted by Marielle
When the spawn try to abduct him? I didn't have that scene in the game.
It happens during the 3rd long rest in Lower City after meeting Petras and Dalyria.
But he made his opinion on the matter clear.
