Personally I wouldn't be happy with that. Way to soon for OM to start stepping into your shoes! What happens if she does let them meet but it doesn't work out with OM? Will she continue to let OM meet your S as and when she feels like it? That will mess with your S head.
Like I say its MO and prob something I will have to deal with
M - 37 W - 35 T - 11 M - 5.5 SD13 D10 S4 ILYBINILWY 15 Oct '12 Moved out 7 Dec 12 At present - Being the best dad i can be.