How should AJ's possession happen? (Patreon)

If you saw Tomb of Qetesh, you know that Lara had an assistant AJ who was waiting for her outside the ruins. Part 2 will involve AJ going in to look for Lara. Qetesh will trick AJ using Lara's voice, lure her into the tomb, and have a servant possess/TF her body into a faithful guardian.

The question is, how should AJ's possession go? I have a few ideas