This is a really great idea. I love how you've set everything up so far and how Jack is living with Rose and John. I can just picture John teaching students. I hope that Jack doesn't have to leave and get his own place. I wonder how and when John is going to get his memories back and become the Doctor. Please continue this story.
Author's Response: Thank you, I like that setup too. I don't think that Jack will have to move out. Both, Rose and the Doctor want him there, although the Doctor - or rather John - doesn't really know why that is. Well, I know how it's going to happen, but I can't tell you. ;) Don't worry, I'll post the next chapter some time next week. :) Thanks for your comment. :)
In Doctor Who, at least up to the 12th Doctor, he has been asexual and heterosexual. I do not think that it would be a stretch for him to be Bi. I do not know if you will go with dump the girl or keep the girl, but I am intrigued by your story.
Author's Response: In my mind, I rather see him as panromantic with varying degrees of sexual interest, depending on the regeneration. Just to give you a peek into my mind, not trying to say that you're wrong. ^^ I hope you'll continue to enjoy it and I hope you'll like where I'll go with it. Thanks for your comment. :)