Hello and Thank You for using Just Answer. The two adults in question can share the same bed in the same room. They have been together a year which is an adequate amount of time for the kids to understand and accept the relationship. Since everybody seems to be getting along well and marriage is in the near future, sharing the same bed would be alright. However, if the two adults in question do not feel comfortable until marriage to share the same bed with the kids around then that is perfectly fine as well. It seems like everything has been carefully planned out with the kids' best interest in mind. If the adults do not think that the children will be able to accept the bed sharing without questioning minds, then wait until marriage. It is really a matter of personal choice in the end.
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