Sister with benefits

Me and my sister being the youngest in the house we always had to share a room since I could remember. In that time growing up we were the closest in the family because of our living arrangements. We were right there together when we were experiencing puberty together. Seeing our bodies changing right in front each others eyes. Lemme tell you I gotta thank my dad for blessing me with an ever expanding cock. At the age of 16 I was already packing a 6 1/2 inch cock. Don’t forget about my well indowed mom blessing my sister with a never ending growing pair of tits by the age of 16. Which was very nice to see growing up. We were only 7 months apart in age so we were side by side in our body development. Growing up was weird at times when I would get pop goes the weasel boners that would happen when I’m right next to my sister on the couch and they were getting harder to hide with my growing 7 inch penis.
My sister doesn’t help when she lounges around the room with no bra and constantly leaves her seductive underwear lying around. It made me feel some kind of way in the pants so I told her about how I can see her nipples.

Why are you looking at them?

Your boobs are just really big and its hard not to look at them if you don’t have a bra on.

She came right back at me and told me.. well maybe you should stop walking around the room with nothing but shorts
because I can see your big penis through your shorts.

Well why are you looking?

Because just like you said it its really big and really hard not to look at if your aren’t wearing underwear.

Our faces were both red as we looked away from each other.

Ok I’m sorry sis. We are roommates and it doesn’t help that we stay half naked around each other. I’m sorry and we are stuck like this for a while so we just gotta make the best of it.

Yes you are right I shouldn’t have flipped out on you like that I’m sorry and we should make the best of it.

I just wanna back track out of curiosity. Do you really think my penis is big out of strictly a woman’s point of view?

Omg I knew you were gonna say something haha. Yes I find your penis quite big and nice from what I’ve seen.

Thanks and to be honest your boobs are very nice from what I’ve seen and they are nice to look at.

Thanks I take really good care of them…….. ummm if you wouldn’t mind me asking how long is your penis. Its been long before but now a days my curiosity has been getting worse and worse haha.

Ohhhh boy this is a wee uncomfortable but if you have to know its 7 1/2 inches long and hopefully you’ll be fine with me telling you and not showing you haha.

In this moment of show and tell I was started to get a little warm in the sac and my penis began to swell and dirty thoughts started popping up and that was not the only thing as I started see my sisters nipples get harder as they were slowly poking through here shirt more and more. Is my sister just as pervy towards me as I am of her?

Wow that must look like an impressive penis as much as you make it sound “big” brother.

Oh come on shut up hahaha. Well how big are your boobs. Those things need to be seen.

They are double D’s but I’m pretty sure you already knew that you little perv haha.

Its crazy talking like this with my sister I feel like sexual tension in the air between use over the years has been broken.

Well since we’re both obviously curious about seeing each others bodies and the desire to be partially naked in the same room. I say we go for it and we make the best out of it like we said.

You’re right lets go for it!

At this point I proceeded to pull down my pants to reveal my 7 1/2 inch long blood filled cock hammer and my sister also took her shirt off to reveal her Voluptuous DD tits. My cock was so fucking hard at the site of my sisters tits. We were both awe struck at the site of each others bodies. My sister red, hot and flustered expression at the size and girth of my penis was textbook. I couldn’t imagine my face being any different gazing upon those amazing tits that’ll make you wanna giz all over them time and time again.

So now what?

I’m just gonna break the ice and say I want to touch your boobs really bad.

Only if I get to touch your cock. I just want to so bad I mean look at it! Its so fantastic and it needs to be touched.

My sister an I proceeded to touch each other. I let her grab my cock first as she slowly admired the size of it while she stroked it. Her warm hand and her soft touch made my pre-cum flow like a dripping faucet.

Its so big I need two hands.

As she grabbed my cock with her other hand I lifted her giant tits and played with them. Admiring the smooth and weight of them as she cupped my balls and started using my pre-cum as lubricant. She started jerking me off while I put her perfectly proportioned nipples in my mouth. Licking and caressing them till it felt like my dick was gonna rip if it grows anymore. The sensation was getting too great and I blew my hot cum on her belly. Just never ending cum shooting out of my hard cock. I could see the shear quantity dripping down to her shaved baby smooth pussy like white paint on a canvas.

Ok we might have gotten a little out of hand on that but holy shit that was great am I right.

Your cock brother, oh my god. I never in a million years but here we are. That was so hot and the amount of semen you just sprayed on me brother. Is it always that big of a load?

Yeah its always that big of a load. Imagine if we were having sex I could fill up a damn swimming pool haha.
I’m glad we got that out of our systems right?

Judging from your throbbing cock big brother and I’m still naked its not out of our systems quite yet.