I indulged my boyfriend's incest fetish and took it to the next level for him

Me and this guy had been dating for quite awhile and though we were comfortable with each other already and the sex was phenomenal, it was approaching the point of the relationship where I like to divulge and inquire about our deeper kinks and fetishes. Like most guys, I could tell immediately that he was holding back. "I'm already satisfied.... I like rough sex.... threesome...." Basically all the stuff every girl already knows that guys want.

I kept prying. I figured if I shared some of my kinkier desires then maybe it would open him up more. I went all the way and shared my interest in CNC (I hadn't yet gotten to explore CNC at this point in my life). He was intrigued for sure, but I did let him get off easy by just saying he shared the same kink. He was still hesitant so I decided there was an easier way of doing this. I asked if he'd be willing to watch porn with me and he agreed immediately. I cozied up on the couch while he went to get his iPad. I took it from him and went to Pornhub. My plan here was to use his recommended videos as a way of seeing what type of shit he was into.

His entire feed was incest porn. Everyone's porn feed has some amount of step-sibling or step-parent porn nowadays, but his was literally nothing but. I smirked and flat out asking him about it. He got red and tried to play it off that he skips the intros to videos so it's just regular sex and the incest aspect doesn't play into it. I assured him I wasn't turned off by it and that this was his chance to indulge if it was something he wanted to try. That finally seemed to break him and we had an actual conversation about it.

He admitted that he had a major incest kink. He had no desire to actually fuck a family member, but porn and roleplaying it were huge for him. I happily agreed and he proposed a scenario immediately (he obviously had thought this over quite a bit). He asked me to send him a nude picture and the idea was to be that it was meant for my "boyfriend" but I accidentally sent it to him, my "brother". He would then proceed to blackmail me with the picture. I had to admit, I really liked the idea. It's worth noting that he had a sister in real life, but I didn't mention it because I didn't want to scare him off.

Off to the races we go. We're next to each other on the couch and I send him the picture. He reacts with a "Amy, what the fuck?!" exclamation that a brother would naturally have. He was a surprisingly good actor for what it's worth. We have a whole back and forth about it where I'm panicked and embarrassed and begging him not to show anyone while he calls me a slut and says I'm disgusting. Then he threatens to tell our parents. I drop to my knees and beg him not to because I'll be grounded forever and that I'll do anything. He gets an evil grin on his face and says if I agree to show him my tits then he won't tell. I protest but quickly cave. I flash him quickly but he keeps moving the goalposts on me. "Show me your tits" quickly turns into "Let me squeeze them" which turned into "let me see your pussy" and so on.

I "drew a line" at him asking for a blowjob, but again he threatens me and I cave, but this is also where I decided to ramp up this fantasy for him. It was kind of a risky play, but I thought it'd be worth it. As I blew him I said, "You like how your sister's lips feel wrapped around your cock?" and he groaned that he loved it. I then picked up my phone, went to his sister's Instagram and went to a picture of her in a bikini from a recent beach trip. I handed him the phone and his eyes bugged out when he saw that I'd done. He started to say something but I shushed him and told him to just use his imagination. He nodded and I swear he was looking at the phone more than he was looking at me. He got way more aggressive and was super into it.

He pushed me onto the couch and roughly pulled off my leggings. Without any warmup he started fucking me hard while gripping my hair tightly. He was saying all kinds of wild stuff like "You love how your brother's cock feels don't you you little slut?" I whimpered a weak yes through my moans and he gripped my hair tighter and said "I can't hear you. You love my cock don't you Paige?" Paige was his sister's name and hearing him say it got me so turned on I really can't put it into words. He fucked me more aggressively than he ever had before until he pulled out and came what looked like a gallon all over my tits and stomach before collapsing next to me on the couch.

Suffice to say he was thankful afterwards.