A few weeks passed. I had been with my sister several more times. I'd licked her to orgasm, I'd fed her my cum, and I'd used her ass three times. Once we'd had phone sex while her husband, Scott, watched but couldn't hear. That's when he found out his wife was fucking her brother. I kind of freaked out, but I shouldn't have worried. He loved it. Me? I was shocked how much it turned me on to be having an affair with a married woman. I was even more shocked and aroused that the married woman was my sister. The more demanding I was, the more turned on she got. She'd wanted this for years.
The first time I'd used her ass, I'd told her she had to earn a pussy fucking. I'd left it at that. I wanted to be inside her pussy, but I also wanted to let her stew. I wanted to see when she'd ask. She didn't, it turns out. Her husband did.
'I fucked her last night, and all she could talk about was wanting you in her pussy. Please fuck her pussy. She said she has to earn it -- what does she have to do?'
I had my answer ready. 'Pierce her nipples.'
'Uh, really?'
'Yep. You take her, and tell them she's doing it for her boyfriend.' I hadn't planned that part, it was an instinctive response to his hesitation.
'Okay.'
'You told her?'
'Yes, and she agreed. We'll do it.'
Two hours later I got a text directly from Debbie. 'I love your demand. So did Scott -- he jacked off as soon as he sent the agreement.'
'What kind of piercing are you going to get?'
'What do you want me to get?'
'Your call. Hoops, barbells -- but you are permanently modifying your body for me.'
'I love it. Anything to get your dick in my pussy. Anything.'
'That's so hot. Let me know when you're going to do it. And when he tells them, text me the word fin'
'fin? Like a fish?'
'Latin -- finished.'
Three days later, at 1:49 in the afternoon, the word 'fin' appeared in my text. I was really busy, so I just texted back a thumbs up. That evening I had more time.
'So he told them it was for your boyfriend?'
'Yes it was great. A lady asked him wait aren't you her boyfriend. He said no I'm her husband. She was shocked! Especially when she noticed his boner!'
'Seriously?'
'He was so fucking turned on he jacked off in the car right there in the parking lot before we could leave.'
'Cool -- did it hurt? I bet it did sorry!'
'It felt great. It hurt, but I'm proving myself to my brother, my lover.'
'Really, I'm sorry.'
'Really, don't be -- it was over in a second. Its sweet that you're sorry though. When will you give me that dick?'
'Saturday night'
'I have to wait FOUR DAYS?'
'Trust me it will be worth it.'
'Okay I guess it's another chance to prove myself to you.'
'Thanks -- again, it will be worth it' I got a kiss emoji in response to that.
I finished up the plans I had started. When everything was confirmed, I sent her a text. 'Be ready at 3 PM on Saturday.'
'Can't wait! REALLY can't wait!' came the instant response.
That Saturday, I swung by the hotel, then drove to the rental car place. I picked up the convertible Jag I'd reserved. The cute little attendant was looking me over as I checked out the car. I think she'd have been open to an invitation, but there was no chance of that. I was about to give my sister the night of her life.
I parked outside her house -- their house -- and walked right up to the door. I didn't even get the chance to knock. Deb opened the door, overnight bag in hand. "See you tomorrow Scott!" she called over her shoulder.
"Have fun you two!" he said, coming down the stairs. His eyes caught mine for a moment. We'd gotten together socially once or twice since this all started. Since I started having sex with his wife, my sister. I knew everything was more than fine.
"Here Scott!" I said, holding out a bag.
"What's this?"
"You're going to love it." I'd found a rare bottle of Highland Park single malt. I knew that was one of his favorite distilleries. I'd liked the guy from the moment I met him. I knew right away he was good for Debbie. Now that I knew exactly how good, well... If this was about humiliation in his mind, that was none of my business. He'd fulfilled my sister's lifelong dream, and that was working out pretty damn well for old Jason too, so I wanted to show my appreciation.
The curiosity stopped Deb, which gave Scott time to pull the bottle out of the bag. I could see he was very pleasantly surprised.
"Wow, thanks!"
"No, thank YOU!" I said. All three of us burst out laughing. Out of the corner of my eye, I saw Debbie mouth something to Scott. He winked, and then she pulled me out the door.
"Wow, what a car!"
"You've always loved convertibles, right?"
"Oh yeah -- you got this just to drive me to your place?"
"No, I got this to drive you to the Fontaine."
"WHAT? The Fontaine?"
"Yep. I told you tonight would be worth the wait."