Thanks for the replies everyone; I feel a bit better now.
I guess part of it was a fear that he would go and seek it somewhere else, but that's just paranoia.
I do feel like I want 'space' at the end of the day (where is the end again?? lol), and yes, going from maternal breasts to sexual breasts is hard at the moment. I'd rather he just left them alone!
Anyway, we'll get there...