My hand was trembling as I reached for my phone. I could see it was a picture message from Taylah, my fiancé. It was the first time I had received one from Taylah, and I was worried about what it would be. It was her last week of freedom as a single woman; next Saturday, we would be married. My wedding gift to her was a hall pass to cut loose and go wild on her hen night out with her girls before she became my wife.

Under normal circumstances, I wouldn't worry about receiving a picture text message from her as Taylah is very conservative and quiet. To the point, my crazy and slutty little sister Carla calls her a stuck-up prude right to her face. I know it sounds harsh to say Carla is a slut, but her antics are well known to me as she purposely goes out of her way to fuck most of my friends, apparently having a gangbang with several of them in our flat one weekend when me a Taylah were away.

She constantly flirts outrageously with all my friends and me in front of Taylah to wind us both up and is always inappropriately dressed when she stays over with us. So, I know exactly what she is capable of. She is Taylah's closest friend, but I just wished Taylah hadn't told Carla about the hall pass thing. It just seemed to be a red rag to a bull.

Thankfully, Taylah knew the hall pass was my way of saying I trust her wholeheartedly and love her unconditionally. I mean, come on, it's Taylah; it's not like she will act on it or anything, right? 

I would find out soon enough Carla's influence on Taylah was more substantial than I anticipated. I received a couple of photo messages earlier from Carla depicting an incredibly good-looking guy with his tongue down Taylah's throat. A couple more followed of this guy's hands all over my fiancé's ass as they danced. Clearly, the drinks were loosening Taylah's normal conservative personality up.

It had been nearly two hours since I had received those photos from Carla, accompanied by a simple line reading, "Be careful what you wish for, Nick!"

Now, a lot can happen in that time. It was now after 01:00 am, and here I was now receiving a picture message from Taylah. My heart hoped it was a photo of her and Carla in the back of an Uber on their way home, but I had a bad feeling it was going to be much more.

As I said, my hand was trembling as I picked up my phone from the settee. My finger hovered above the message for what seemed like ages before I tapped the screen. The screen lit up, and my heart sank. It was a picture of my beautiful fiancé naked on her side, stroking the biggest cock I had ever seen. It must have been ten inches long and so fucking thick it put me to shame.

The owner of the cock, Scott, which I learned from the message attached to the pic, had two fingers shoved up Taylah's arse hole. Her pussy was literally dripping wet, I had never seen her this wet, and I had never been able to even get close to her arse hole that was definitely off-limits. But there was some stranger double-finger fucking her arsehole. And the look on her face said she loved every second of it. Looking at the pic, it was like he was stretching it open to slide that enormous cock into it.

My stomach churned, and I felt sick. I honestly didn't think Taylah would use the hall pass, I knew this was Carla's influence, and I would let her know what I thought of her when they got home. The phone chimed again, and another pic was attached. I again dreaded opening it but tapped the screen, it was similar to the first photo, but now I could see Taylah's arsehole was all stretched open, and Scott's cock looked even bigger and harder, if that was even possible.

This time the message read, "Hasn't Scott got a magnificent cock? Tay is completely addicted to his big dick, so much so she has offered her virgin arse to him. PS, Tay says don't wait up; we probably won't be home tonight."

Fuck, I thought angrily and threw the phone on the settee next to me. That little slut of a sister has turned my Taylah into a whore like her. I got up and stormed across the room, furious that Taylah would do this to me, and then the light bulb moment happened.

I did this to me. I gave Taylah the hall pass. My exact words to her when she was getting dressed to go were, "Hey, it's your last week of freedom; next week, we will be married. Why don't you cut loose tonight, go wild, do something crazy?"

Taylah had just looked at me at the time and screwed up her nose, and said, "Like what? I don't know what you think we are doing. We are just going on a pub crawl with my girlfriends. I'm not going out to get laid, Nick, just because I'm getting married. I certainly hope you didn't do anything stupid last weekend with your friends like cheat on me?"

"What? No, of course not. I just mean, let your hair down have some fun. I'm sure Carla has organised a male stripper or something. And I'm ok if he touches you up a bit, or you know you give him a quick blowie," I had said.

"Fucking hell, what's got into you? I'm not going to be giving anyone a blowie, for Christ's sake, we are just going out for drinks and a laugh, maybe have a bit of a dance, there won't be anything else going on," Taylah replied, looking at me in a strange way.

"Ok, well, I'm just letting you know I trust you and love you, and I support whatever you get up to tonight," I said, reassuring her I wasn't trying to force her to do something.

So there it is; this was all my fault. I was the one that said she could go wild, and from those pictures, Taylah has done exactly what I told her she could do. I grabbed the bottle of scotch out of the cupboard and poured a large glass, and threw it back, trying to drown out my sorrow. I had just poured another one when my phone chimed again.

I retrieved my phone from the settee and opened it. I dropped the glass of whiskey to the floor. Taylah was laid back on a bed, her legs spread open, her pussy was gapping, and all stretched out of shape. Her puffy, swollen pussy lips and arsehole were all covered in cum. Scott's cock was just in the picture; he had just fucked Taylah deeper and probably better than I ever could.

The phone chimed again, and I tapped the screen. This time no picture, just a message.

"Scott says, thanks. He appreciates you lending out Tay's arse, mouth, and cunt for the night. He hopes you don't mind, but he never uses condoms. You might be lucky he might not have knocked her up this time. But he suggests you get her on the pill before the next time he fucks her. Oh, and Nick, Tay said he is definitely going to be fucking her again, so if you don't want to be looking after his kids, you better go to family planning. But don't worry, big brother, I've got your back. I licked as much cum as I could out of Tay's stretched-out cunt. I mean, what sort of sister-in-law would I be if I didn't help to stop my new sister from getting pregnant?"

"What the actual fuck?" I screamed out.

To be continued.