“Oh my god,”, my step sister exclaimed as she walked in on me jerking off with her bra clenched in my hand. “Not again! I thought mom and dad were paying for therapy for this kind of stuff!”
My step sister has always been hot to me, especially her large breasts. The size most porn stars have, except hers were completely natural. Natural yet firm, I’d been caught spying before as well as using some of her personal items for my own pleasure. It turns out that maybe my step sister wasn’t too pleased with that and told our parents and I’ve been in therapy for a while now dealing with the so called “issue”. In fact it was helping until today, when, I was feeling a particular kind of way.
“I’m telling mom!”
“No, wait please don’t!”, I begged.
“Well, what am I supposed to do? Your my little brother and your jerking off into my bra!”, she retorted.
“I can explain, see I wa-”
“I don’t think that’s necessary, I can see pretty clearly what’s happening! Mom!”
“No please, be quiet!”, I half whispered and half yelled.
“Again, what the hell am I supposed to do here?”
“Well…”
“Well, what?”
“I mean, you cou-”
“I could what? Show you my tits?”
“Um, yeah, actually.”, I blurted out.
“What the hell? Who thinks of such a perverted thing? I’m your sister!”, she scolded.
“C’mon, please? If I can just see your tits, your big, juicy, massi-”
“Enough! I can’t believe you’re even asking me to do this, let alone talk about me like that.”
“So, will you?”
“No!”
“Please? I’m hard as a rock and your bra can only do so much for here! Plus, I may have spied on you before but I’ve never seen your tits at a good angle before, it could do me some good.”, I poured out trying to reason with her.
“Jesus, you pervert! That’s my favorite bra, too, you asshole!”
“Yeah, well it wouldn’t have to be here if I could just see them!”, I motioned to her breasts.
“I’m not showing you my tits.”, she held strong.
“Fine, well you can have this back after it’s covered in my cum.”, I dangled the pink, lacy bra in front of her. God, this bra always made her tits look even more massive than they already were on their own.
“No, at least met me trade you for a different one. That’s my favorite bra!”
“I know, that’s why this orgasm is going to feel so much better. The look of this pink bra covered in my white cum will be beautiful.”
“No! Fine. I’ll show you my tits, just please give my bra back.”
“Yes! But, you have to leave them out until I cum. And, you can have your bra back once I’ve finished and blew my load on your tits.”
“That’s too far, asshole.”
“Not I’d you want this back. Plus, who knows maybe this will help me with my little issue.”
“Screw you.”, she said as she pulled her breasts out of her shirt.
Oh my god they were even more beautiful than I expected them to be. They were flat out huge. There was no other way to describe their size. Her white yet tan flesh poured out of her shirt with her seductively pink nipples at full attention, staring me in the face.
“Is this good enough for you, perv?
“Oh, yeah. Now, come over here, let me get a look at these things up close.”
Her breasts jiggled with every step she took towards me, they were hypnotizing.
“Screw that!”, she said as I reached out to test them out with a good squeeze.
“Do you want this back or not?”
“I hate you.”
“I know.”
Holy shit theh felt great. Soft to the touch but at the same time they were incredibly firm. You could tell she was young by just feeling them let alone seeing them.
After I was satisfied with her breasts in my hands I pulled put my cock and started stroking. The bead of precum on my dick was big enough to be enough lube for a round of anal to be honest. It felt great, stroking it to my big step sister’s huge tits. I knew that I wouldnt last long but she didn’t need to know that. I slowed my pace and turned from her tits to her face. It was beautiful too, throughout her life she had always been compared to the likes of Natalie Portman, minus the chest.
“This isn’t working.”
“What?”
“I can’t cum like this. It’s not enough. I need more.”
“Well, that’s just too damn bad. You have my tits, look at them and cum or don’t. This is all you get.”
“What if I fucked them?”
“No. No, this is all.”
“Please? They’re already out, the only thing left to do is for me to put my dick in between them.”
“Oh my god, fine. Just hurry up. Well, get on with it!”
I shoved my cock in between her fat, beautiful breasts and she slid them up and down me. It was poetry in motion the way her tits seemed to lag behind her. The fact that my cock was sitting between my step sister’s 34 DDs was insane. I was close and I think she knew, she was picking up the pace. Her tits moving up and down, up and down, up and down. She definitely knew, and once she was moving even faster I exploded all over her tits. Her massive breasts were covered in my cum. It was a sight to behold. I pulled my dick from between its temporary home and slapped it on her nipples simultaneously shooting out a few extra drops of cum I had left.
“Now give my bra back. You came, on my tits even, AFTER you got to titty fuck me. You got way more than we agreed on. You owe me.”
“Sure thing, sis.”, I said as I handed her bra back.
Source: reddit.com/r/Erotica/comments/oa2nig/my_step_sister_helped_me_out_with_a_little