Emulating "Porn"

I am not sure what ST’s rules are about referring to websites, so I’ll just say this one has the third from last letter in the alphabet in it three times….you’ll either know which one I mean or you won’t. Either way, the vid was entitled “He cums in his sister’s panties’ and showed a girl and guy standing, she holding her panties forward from her tummy, and him emptying his load into them, after which, she tucked them against herself and wore them with his semen seeping through and, unusually for me when I watch ‘amateur’ porn like this, it struck a note. 

Enter TLC’s brother, with whom I have a ‘cockshare’ arrangement. He has a girlfriend now, but by agreement with the three of us, I still get to sample the goods now and then. He tells me that she rather enjoys smelling me on him, and although she has shied away from a threesome, she does happily, and more importantly knowingly, suck me off his dick regularly. Well, sweetie, it’s only a short step from sucking me off…er…well….me! 

So, I told him about the video, that it was brother/sister, and the setup. And like a bolt of lightning, an idea hit me. It’s clear he will gravitate towards his girlfriend in the long term, so why don’t we play brother/sister from here on out? He leaped at the idea, and as of now, he’s my ‘brother.’ It’s been a while since I did anything with Alison, and I miss the naughtiness of incestuous sex. 

Within seconds, we were standing facing each other. He was wanking like crazy and I had my dress up and was holding my panties out and was in full-on roll play. 

“You’re sure? You’re sure I can’t get pregnant from this?”

“Yeah sis….promise! I’d have to get my stuff inside you for that.”

“I do  know, you know.’

“Know what?”

“Oh come on….I know you’ve been stealing my underwear and cumming in them. Mum thinks I’ve started having sex!” 

“Ohh…..er…”

‘It’s ok…..I don’t mind. In fact…I…..I touch myself thinking about you smelling me and wanking off.”

“Ohh shit….I’m close, sis.”

“Go on then. Show me what you do in my panties.”

I thought he’d just common my mound, but he pushed his cock down and came right into the crotch.

“I…I wanna cum where your mess is.” (Mess….mmm what a lovely word.) 

I felt his cock convulsing while he leaned in close and whispered “Oh, sis….I fucking love you. I…..I wanna do it with you so bad.” 

I looked down at the devastation in the crotch of my panties, and smiled at him before leading him to the bed. 

Once there he got on top of me. I was heavily lubricated with a crotch full of his semen and my girl cum. But I still had my panties on. It felt deliciously innocent, yet highly erotic too. “Go on then…do it. Put it inside me.” He pulled my panties aside and I put on my best ‘virgin first time’ act as he pushed in. I yelped at the right moment and really played to the gallery. 

As he fucked me, I kept up the role play. 

“I’ve touched myself…thinking about you.”

“But I’m your brother.”

“Didn’t stop you smelling my undies, did it?”

“Well…no…but I didn’t know you thought of me that way.”

“Why wouldn’t I? I know, absolutely know you’re smelling my underwear, thinking of me and wanking…why do you think that wouldn’t make me  horny too?”

“Ohh fuck sis….that’s so dirty.”

“Yeah….so’s what you’re doing now. You’re fucking your sister…and it feels amazing.”

“Where shall I……do it?”

“Inside! Do it inside me!”

“But what if…”

“I’ll take care of that….we’ve come this far..I want you to cum in me. I can’t be a virgin with my brother’s spunk in me, now can I?”

He tensed up and pushed deep up me and I came with him….hard…violently…and in that exquisite moment of completion, we were really brother and sister in mind and body. 

Now, I know he and TLC have a sister, so when we’d relaxed a bit I had to ask if he’d ever explored her undies. The period of silence that preceded the ‘A bit.’ spoke more than the words did. 

So….I now have a surrogate brother. This is going to lead to some fun!