He realizes the dream was real, and goes with it.

Realization dawned on Sam, and while still slightly disturbed about doing this to his wife, he now knew that it was for her own good and put that aside.

He walked over to her. By then she was kneeling next to their bed. Mary's mouth was wide open and she had her hands cupped under her face to catch any runoff. Sam aimed and **** his muscles to relax, emptying his bladder into his beloved's mouth.

"Thanks, Sam." Mary said after swallowing the last mouthful. "Do you have anything else for me?"

"Not at the moment, no."

"OK. I'll go with you to the kitchen to get something solid then."

"You go ahead, I'd like to check on something in my office first."

Mary seemed slightly confused at that, but she shrugged, pulled on a robe, and padded out of the room.

Sam watched her go, noticing that she didn't get more dressed first. Yes, they both worked from home, but given the nature of their jobs they rarely remained indecent while in their home.

Sam and Mary were both YouTubers. They ran three channels between them, with one of them being a vlog. Because of this, they were filmed nearly everyday.

Reaching his office, he unlocked his computer and did some quick research on the world that he'd found himself in. It confirmed everything he'd learned in the dream, with a few more details.

He found that relieving yourself in public was perfectly acceptable. So was asking a random woman on the street to use her mouth as a toilet. Because of this, nudity laws were more relaxed. As long as no sexual acts were done, it was permitted to be seen in public (or on TV or YouTube) in your birthday suit. Clothing was seen as more of an optional accessory that most people still wore, especially when it got cold out, but not required by law. In order to confirm this, he looked through some of his older vlogs and saw Mary and himself occasionally lounging around completely nude.

As for what children did when they needed to go, they went in special containers, and the contents were eventually consumed by woman like their teacher, shipped off to restaurants to be used in meals, and there was even one video showing a woman on the International Space Station drinking the piss and eating the shit of some elementary school students with a huge smile on her face, while completely nude, floating in the low gravity.