How to involve a 1 month old baby in a marriage proposal?

I'm planning on proposing to my girlfriend of almost 3 years on Christmas morning. We are expecting a baby girl on December 1st, 2011. I was wondering if anyone had any ideas of how to involve her and my girlfriends son(from a previous relationship) who is 3(she got pregnant and then her ex dumped her). I wanna... show more I'm planning on proposing to my girlfriend of almost 3 years on Christmas morning. We are expecting a baby girl on December 1st, 2011. I was wondering if anyone had any ideas of how to involve her and my girlfriends son(from a previous relationship) who is 3(she got pregnant and then her ex dumped her). I wanna propose in front of both our families which is why I chose Christmas morning. Any ideas would be very helpful.
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