Tenchi, who had been expecting Washu to sneak up on him at any minute, was curious to know what the red-headed gunius was up to. Washu hardly ever missed meals (unless she was working on something big like Sasami said). Washu would drag Tenchi to her lab once in a while and did little experiments on her favorite guinea pig. Sometimes, Washu would just tie him up on the wall, naked and helpless to get loose all day. Last time he had been to her lab, they had anal sex. Tenchi did it because Ayeka and Ryoko were having another fight about him, and he really wanted to sleep with someone who wouldn't blow up the house. True, Washu would blow up the whole universe, but Washu wouldn't do it on a whim. Washu was an expert on all things sexual. In her 20,000 years of life, Washu had done all the things in the Kuma Sutra. Washu usually had sex in her adult self, which suited Tenchi just fine, for Washu was a total babe as an adult. Before Washu came to the Masaki house, Tenchi would've picked Ryoko to be the most beautiful woman there. But, Ryoko couldn't hold a candle to her genius of a mother. Washu had even offered to father Tenchi's baby more than once, and she had said it right in front of Ryoko and Ayeka just to see thier reactions. So Tenchi snuck out of the kitchen when the table was reduced to splinters by the fight while nobody noticed.
Tenchi entered the lab, but there was no Washu anywhere.
"Washu?" asked Tenchi.
No answer.
"Washu?" asked Tenchi.
"Ah, my guiena pig" said Washu's voice.
Tenchi looked everywhere, but still couldn't see Washu. That was when Tenchi saw something floating in the air. He looked hard at it and saw it was a floating platform and a tiny Washu was on it. Washu was wearing a makeshift bikini.
"Washu, what happened to you?!"
"Don't ask" said Washu. "and don't tell anybody what has happened to me"
"On one condition" said Tenchi.
"What?"
"You'll be my slave"
Seeing the tiny Washu gave Tenchi a sense of power. Now that Washu was that small, he could have fun with her instead of the other way round.