Of course - she's addicted.

ON Saturday morning there was a beep on my phone.
"Leaving now will be up that way in an hour, going to drop Leroy and kids at my sisters and tell them I'm calling to see Linda, not sure how long we'll have! x x "
I knew Linda, she was a friend of Donnas I was horny immediately I knew she was on her way. It was a good cover story.
I seemed to pace around a bit excited of what was coming.
Then there was a knock at the door.
I answered and she stepped in. "I parked around the corner so nobody recognised me!" she said
I laughed "Fuck you've turned into James Bond, superspy!"
She laughed too and we embraced kissing passionately.
She had on a tiny summer dress and my hands went under it to cup her amazing firm arse. Those gyms are doing their job I thought to myself as I squeezed her muscular ass cheeks.
"That video call was bloody amazing!" she said "I get so wet just thinking about it!"
"Oh my god, you looked so hot. I wanted you so much!" I said
"Me too, you've got me now though and we might not have much time!" we kissed more
Her phone beeped. She checked it and she said "It's Leroy, mum and dad called there and have taken the kids out for a drive! It might give us a bit more time!"
"Soooo," I asked "what would my sexy girl like to do today?"
"As long as you fuck me with that big dick of yours I'm happy but . . ." she tailed off
"Go on, what's up?" I asked
"I kind of like you being rough with me, dominating me, telling me what to do!" she said.
I walked into the lounge and sat down.
"Come here!" I said
She moved towards me.
"Stop! On your knees and crawl to me!" I said
She lowered to her knees and bit her lip. "Yes sir!" she said as she crawled with a smile on her face.
"Over my knee!" I said and she climbed up and bent over my knee. I could feel my cock uncurling and growing hard beneath her.
I pulled up her dress to expose that gorgeous ass and muscled thighs.
I spanked her pretty ass. "Ow!" she said then followed it with "Thank you sir, please do it harder!"
I slapped her ass again and this time it left a red hand mark. "Ahhh thank you sir!" she said
I continued to redden both cheeks. All the time getting thanked for the punishment she was receiving.
Her breathing had increased and her cheeks were both now stinging.
I pulled the thong from between her legs and stroked a finger along her wetness. Then slipped a finger into her tight wet pussy.
"Oh thank you sir! that feels so good!" she said
I told her to get on her knees again and undid my jeans and removed my tshirt. I kicked the jeans off and she bit her lip, knowing that sexy innocent look was turning me on.
She grabbed my jeans off the floor and pulled the belt from the hoops. She fastened the belt back up so it was in a loop. She put the loop around her neck and passed me the free end.
"I saw someone leash a girl like this in a porn film!" she said "I'm giving myself to you! You own me sir!" she talked in a naughty girl kind of way.
I pulled the leash and it tightened around her neck. My cock had grown to rock hardness with her words.
I pulled her to me and kissed her deeply. I sat on the sofa and then lay back, I lifted my legs exposing my cleanly shaved and washed balls and ass.
"I think you owe master a good ass licking don't you?" I said to her as I pulled her closer.
"Yes sir!" she answered and she tentatively licked my asshole. Within moments she was losing herself and almost tongue kissing and fucking my ass with her tongue.
She licked up over my sensitive balls and up my cock then back down and buried her face between the cheeks of my arse as she stroked my cock.
I told her to take off her summer dress and she was wearing a sheer white bra that matched her sexy thong. I bit at her nipples, and ripped off her thong, knowing that would make her go back to her husband and my ex wife in a short loose dress with no panties.
Her face flushed a little obviously knowing that would be the case. I was new to this dom role, I still didnt' really know what to do.
But she seemed to get off the most on being talked dirty to, being called names.
"What does my little slut think she's going to be ordered to do next?" I asked
"Anything sir says!" she replied.
I grabbed the belt and told her to stay on her knees as I led her up stairs. When we got to the bedroom I tied her wrists and ankles so she was spread on the bed.
I took my cock to her mouth and fucked her. I photographed her with my phone, sucking me. Videoed her licking my ass and begging for more.
I licked her pussy and pinched at her little tits videoing her thanking me and begging sir for more all the time.
I fucked her hard and that is when she seemed to lose her completely submissive role. She loved being fucked. "Fuck John yes use that pussy! Your cock is amazing baby, I fucking love you! Arrr fuck I'm coming! Harder baby harder!!" she yelled and it was now me doing as I was told. I was jack hammering into her, sweating and moaning as i fucked my little tied up sex toy.
I pulled out and she thrashed on the bed "Noooo, please John I need to cum! Don't stop sir! Pleeeease!"
I took my cock to her mouth and fucked her so she couldn't talk.
I untied her arms and legs.
"Give me your ass!" I said.
She lifted her legs up and spread her self. I pushed into her beautiful firm arse with no resistance and went straight to fucking her at full speed. "Take that big dick! Rub your clit as I fuck it !" I said and she did exactly that.
We kept fucking each other until we were right at the edge of cumming then stopped and changed positions.
neither of us wanted it to end.
We must have fucked in every position imaginable for an hour but then I pulled her to me and said "I need to cum in you! Where does my slut want it?"
She went down and started licking my ass again, wanking my hard cock as she did so. When I was ready to come she took me in her mouth and literally took every drop.
I collapsed on the bed and she climbed up and rested her head on my chest.
I still hadn't let her cum. She didn't mention it but I wanted her to leave here completely satisfied.
I went down on her and licked her hugely sensitive clit, she literally screamed and cum within a minute or teasing her.
Her phone beeped.
She checked it and it was Leroy. "What time are you back shall we make you lunch?"
She replied "No. I'm all good thanks. I'll be another hour or so."
I took the phone off her and went into her photos. I scanned through and she giggled. "What's sir looking for?" she laughed.
I want to see the pics of you and Leroy I said.
"Really?" she asked
"Yes, I want to see him dressed up like a girl, I want to see him getting fucked by you!" I said
She opened an app on her phone and there were various folders.
She click on one and started paging through videos and photos of him in underwear and dresses. In some he was even out in a bar with her.
"Jesus! you've really got him where you want him!" I said
"I do still love him John. But he's more into that than being my husband! You're my man now!" we kissed and held each other tightly. I was falling for my sister in law and it felt very dangerous.