Spina Bifida Support Group
Spina bifida describes birth defects caused by an incomplete closure of one or more vertebral arches of the spine, resulting in malformations of the spinal cord. The spinal membranes and spinal cord may protrude through the absence of vertebral arches (called clefts).
Now your question about keeping the mood while the right before sex bathroom break is taking place, this may take a little more of an act on your part. Maybe while he is using the restroom, you could be in the bedroom getting everything ready or slipping into something sexy. Or doing something that keeps yourself interested. In my experience I never had the problem with me losing interest during that process. The woman on top in the missionary position is the best for when he is tired, but laying on your side can also be satisfying. Please let me know if you have any more questions. And sorry if any of this is too explicit.