In the Pokemon Center of Vermilion City, Ash and Misty stood in front of the video phone and saw Professor Oak getting Tackled by a purple, poisonous blob. 'That Muk of yours is getting on my nerves,' the Professor moaned.

'Professor, I have to ask you something,' Ash said.

'Okay, what is it?'

'I remember that you had a machine to do Pokemon DNA tests with. That way, you found out that your Meganium is the father of many Grass Pokemon at your Pokemon Corral. Would you be able to do a DNA test on humans with that machine?'

'On humans? Why?'

'Well, I want to know who my father is,' Ash said. 'My mum told me she spent some time with Spencer Hale eleven years ago, but they never did it, because she got distracted by Surge. However, when I talked to Surge, he said he didn't sleep with drunk women. Then, James said he slept with mum. However, he also said she had sex with at least ten men that night. Would you be able to track down all men she had sex with that night and do a DNA test?'

'Wow, I didn't see that one coming...' Ash's friend said. 'However, I think I can help you. Come to my lab in two days and we'll talk about this.'

'Thank you, Professor!' Ash said.

'You're welcome,' he said. 'Hey, why are Togetic and Pikachu looking so worn out? It's very early in the evening, too early for them to sleep...'

'That's a long story. We'll tell you on Thursday,' Misty said. 'Bye!'

Two days later, Ash and Misty sat on the sofa in Professor Oak's lab, next to both Delia and the Professor.

'Professor, when are we going to do the DNA test? Do you know how to find out what men my mother slept with? I know she fucked James, but what about the others?' Ash asked.

'Well, we don't need to do a DNA test,' the Professor said. 'I already know who your father is.'

'Who is it?' Misty asked.

'Well, it's a long story,' Delia said. 'But after the party I told you about... Well, the next morning, I woke up with a hangover. Next to me, I saw Professor Oak, wearing white boxers and a lab coat. He looked so handsome with his lab coat and nothing under it... In fact, he still does!'

'What do you mean, mum?' Ash asked. 'So you slept with Professor Oak. But how do we know who my father is? James said you slept with at least ten men that night!'

'Well, when you were a baby, she asked me if I was willing to do a DNA test,' Professor Oak explained. 'Then, we found out that you and I share the same DNA.'

'What do you mean?' Ash asked.

'Ash. I am your father.'

'You? But why didn't you tell me?' Ash snapped. 'And mum, why didn't you tell me? You knew all this time!'

'Professor Oak and I didn't want the town to start gossiping about a sex scandal between a rich Pokemon Professor and a drunk, vulnerable woman, so we kept this a secret,' Delia explained. 'I mean, I had a reputation for constantly being drunk during parties, so if the town found out, they would think Professor Oak was taking advantage of me. But yeah, we were planning on telling you in a few years, but when you asked Professor Oak, I mean, dad, to do a DNA test, we knew we had to tell you the truth.'

After all these years, Professor Oak was his father. His friend, his mentor, his rival's grandfather... Even though he wish he knew earlier, he understood why his mother was unable to tell him sooner.

'Sorry for not telling you earlier, Ash!' Professor Oak apologised. 'I understand if this is difficult for you. I won't expect you to start calling me dad, father or daddy if you're not ready for that.'

'Don't worry, dad! I'd much rather be your son than James' son!' Ash laughed.

Finally. The mystery was solved. Ash knew who got his mother pregnant at the drinking party eleven years ago. 'Dad, it'll take some time to get used to what I just learned, but I'm happy to have you as my father.'

'And I'm proud to have you as my son, Ash! I love you!' the Professor said. 'This is why I've tried to be your friend during your journey, and call you on the phone all the time. Even though I couldn't open up about the fact that you're my son, I still wanted to be involved in your life.'

'Does this mean Gary will have to call me Uncle Ash from now on?' Ash teased.

'Yes, it does. I gave him a phone call yesterday, and I told him I was going to tell you today. But remember that nobody, aside from you, Misty, your mother, Gary and I are allowed to know about this!'

'Mrs. Ketchum, Professor Oak... There's just one thing I want to know,' Misty asked. 'I see you two together all the time when you visit Ash during League tournaments. Was Ash the result of a fling, or are you two together?'

'Well, back then, Delia was in her wild phase and had one night stands with many men,' Professor Oak said. 'However, I was in love with her. When Ash started his journey, Delia was alone more often, so I visited her every day. Because of that, we got closer and closer, and we decided to be together when we watched Ash's Johto League battles.'

'We were planning to tell you at some point, but never got around to it,' Delia added to that. 'But yesterday, Professor Oak proposed to me! We're getting married next year!'

'That's amazing, mum!' Ash said.

'That may be, but did you change your underwear during the past three weeks? You smell like a Gloom!' Delia snapped at her son.

'Mum, please...' Ash moaned.

To change the topic and distract Delia, Professor Oak asked Ash a question. 'Since you're travelling with Misty... Does this mean I have a daughter-in-law?'

'Yes, it does! In Vermilion City, we finally confessed our feelings to each other and made out!' Ash said, while putting his hand on Misty's bare leg. Then, Misty started licking her boyfriend's neck in front of her parents-in-law!

'Well, congratulations! You two are a really cute couple. However, you two are acting a little inappropriate... Public display of affection is cute, but this is too much...' Delia said.

'If you want, you two can use the guest room upstairs to have some fun,' Professor Oak suggested.

'Thank you!' Ash said. Was he finally going to lose his virginity to the girl of his dreams?

One hour later, it turned out that he did. Both he and Misty were deflowered. Now, they finally knew why their friend Brock was so obsessed with sex! 'This is the best day of my life!' Misty moaned, while her Cloyster used Surf. Meanwhile, Ash's Metapod released his String Shot inside Cloyster.

Half an hour later, Pikachu and Togetic entered the guest room and gave their Trainers a hug.

'Pikachu, sex is amazing!' Ash said.

'Pi Pikachu! Pika Pika Pi Pikachu!' the yellow mouse replied. 'I know, I just got laid as well! Togetic and I fooled around in the corner of Professor Oak's living room. We didn't even get caught!'

Meanwhile, Misty held Togetic. 'You feel heavy, Togetic. Is something wrong?'

Togetic shook her head. Then, the white Pokemon popped out an egg!

'Pi Pikachu!' Pikachu cheered.

'I'm so happy for you, Pikachu! You're going to be an amazing father!' Ash said, while giving his Pokemon a high five.

Togetic hugged her boyfriend. After that, Misty grabbed her Pokemon, put the Fairy type next to her and petted the mother in the making on her head. 'I'm so proud of you, Togetic!'

'Toge! Togetic!'