Several days have gone by. Donna was still bedridden with the flu and the gang could not get together because of Jackie and Kelso's constant arguing. Eric spent a lot of time with Penny, but since they were not alone, they could not have sex again.

Eric was in high spirits. Fucking his cousin was awesome and he knew it would happen again. When he got home from school one day, he was disappointed Kitty was there. It meant another day without having sex with Penny. It was more disappointing that Kitty gave him a task. There were some things that Laurie took with her to her apartment, and Kitty needed them back. Some tablecloths and silverware Kitty needed for an upcoming dinner party. She suggested Eric took his cousin with him. He reluctantly agreed.

When they got to Laurie's apartment, they found what they were looking for in the kitchen.

"It's a nice place", Penny said as she walked around the apartment. She wandered into the bathroom and said "Wow, what a huge mirror!". Eric followed her into the bathroom.

"Are you thinking about…what I'm thinking about?"

"Hmmm…probably, but what if Laurie shows up?"

"She works in the evenings, she'll be back around midnight."

"Well…according to the rules we need to be alone in the house and…I guess we're in a house."

"Indeed we are", Eric said as he smirked at her.

"Indeed we are, fuckboy", she replied.

They started to kiss and undress each other. Soon they were both naked and Penny was slightly bent over the counter. Eric was behind her and they started to fuck. Fucking while watching themselves was so thrilling it was almost overwhelming. Eric could clearly see in the mirror how hard his cousin's nipples were and how her breasts were jittering with every thrust. Loud sounds of moans and heavy breaths were filling the cold air in the bathroom. Eric was ecstatic. Somehow each time he fucked his cousin, it was better and more intense than the previous time. When he sensed she was about to climax, he kissed her neck and climaxed along with her. They were submersed by intense pleasure and elation. Afterwards, they just sat on the bathroom floor.

"Fuck Penny", Eric said, "Every time we fuck it's like the best ever and than the next time is even hotter!"

"Yeah it is, fuckboy", Penny said with glowing eyes.

They talked some more until Penny said she had a wild idea.

"What is it?", Eric curiously asked.

"Hmm…do it in Laurie's bed."

"Well, that's dangerous", Eric said.

'We'll tidy up after we're done."

"I don't know…"

"Are you really gonna say no to me, fuckboy?"

After a couple of moments they were in Laurie's bed. Penny was sitting up, leaning back on her hands and thrusting her body against Eric's body. Eric was grabbing her waist as they fucked and looked into each other's eyes.

They made the bed when they were done and headed back home. They had dinner with Kitty and red, but Eric could barely focus. He was replaying in his head the sensation of fucking his cousin, feeling her amazing body against his and the delight on her as she looked at him. When he went to bed that night, he was getting hard again, wondering when the next time would be.