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Introduction:

A time of developing into a man, turns into a time of developing a new found relationship.

Usually I never gain the attraction of any women my age, but I was told turning 18 would change everything.
It started off as any other day, as I sat at the dining table with my right arm around my cousins chair. We were both nose deep into our phones. With the slouching angle I was sitting at. I started to notice that my cousin would look down towards my basketball shorts. We've been close for some time now, and have gotten even closer over this summer break. Our parents trusted our close relationship. Being we made fun with twisted jokes. Occasionally playing the penis or vagina game in public, where the volume of our voice builds each turn while mentioning either word.

As she took another glance down, I caught sight of her phone. She had a photo of breasts on her screen. Very perky, with each areola a perfect circumference around the nipple in my opinion. Few bumps made it too authentic to be online. Without notice my dick began to grow. She almost jumped in synch with my bobbing erection, and looked back at her phone. With a quick flick to the left with her thumb. The perfect picture was gone, to display a picture of her in a sun dress. She looked back at me and smiled stating she forgot to erase some pictures. Fresh out of a relationship, I could only wonder how far the lucky bastard got. A late shock wave ran through my mind. I just seen my cousin's tits, and they are better than most porn stars I know. Spending my time as usual teens I hang with. My days consisted of allot of gaming, and a mind full of sex I released with porn. She definitely had the tits of most teen porn on the internet.

Around 11:30, my mom and aunt came in with arms full of grocery. Both telling us to head out and grab the rest, for them to stock and cook in the kitchen with. Birthdays are spent with family if not amongst friends, and given my background, I chose family. Placing my phone down, I followed my cousin out the door. Staring at her back side after assuring nobody had an eye on me. I noticed there were no panty lines visible on her tight round ass. She bent forward near the car to pick up soda, as I pretended to walk into her by accident. Pushing her shirt forward to see my suspicion was correct. She wore a white thong with the straps barely showing on each side of her. I apologized humorously and told her I'd take the soda, to which I had.

After loading off all the grocery into the house. I grabbed my phone and made my way into the bathroom. Taking a piss turned into a hard task. When thinking about the tits and ass on my cousin made my dick rise once again. Having to point downward, I was interrupted when my phone vibrated with a notification sound. I washed my hands and fished my phone out of my pocket while walking into my room. It was a multimedia message from my cousin. Tapping into my text. There it was. The tits I now wanted so badly to lick and tease. Under the photo was a teasing caption "in case you didn't see enough earlier," with a smiley face emoji following. In a flash I whipped my dick out. Still hard, I gripped it with some baby oil I squirted into my hand off the dresser as I passed. With each pump, I tried to fantasize her naked body whole. The loud clap against my skin echoed a bit in my room, as I was on the verge of coming so quickly. I received another multimedia message.

Being that our house has two floors, I could hear if anybody was close. Keeping my door open so there were no suspicions, I stopped to open the message. My cousin sent me a picture of her pussy. I had no idea how far my 18th birthday was going to take me, but I was ready. I finished up with more help from the new photo, then sent a text asking a simple why. She responded that she was into me for some time, but had to see if I had any feelings towards her. Stating that the comments I usually make about her body, was what tipped her feelings. I replied saying everything I said was true, and I always had a hidden crush. To which she replied that she tested me earlier, and actually had the picture up for some time to try and gain my attention.

Me: So where do we go from here?
Cousin: Idk....your Mom and mine are really busy down here.

I massaged my dick hard, and took a photo to send.

Message Sent
Cousin: Wow....did I do that? Lol, maybe I can help?
Me: I just got a load off, but another one wouldn't hurt right?
Cousin: Really....already?
Me: Yeah. So how are you going to help? Sneak away and give me that sweet ass of yours?
Cousin: Not too fast. Lets take it slow. I don't want to be used for sex. Thats how my ex became my ex.
Me: I respect that. We'll sext for now, and if you think I'm good enough for it. Then, you let me know. Deal?
Cousin: I walk into your room and shut the door, taking off my shirt and pants. Making my way over to take your shorts off.
Me: I lean in to kiss you, while grabbing for your breasts and ass. Kissing down to your neck.
Cousin: Can I come sit up there with you?
Me: Sure

As I heard her climb the stairs. She was telling our Mom's who have been cooking for the past hour, that she was going to keep me company. My mom replied that I need to get off the game and go play outside for a change. While our Mom's laughed, she came into my room and sat next to me on my bed. She looked at her phone after flashing me a quick smile.

Cousin: As you kiss my neck, I grab your dick out from your boxer's slit. Starting to massage it while I touch my wet pussy.
Me: I lean back to take my tank top off, and reach around to take your bra off. As I slide my hands down to take your panties off, I touch between your legs to see how wet you are.
Cousin: After massaging your dick for a bit. I lean down and lick the tip.
In the middle of reading her text, I realized she had began texting with one hand. Her left hand was in between her legs. Hidden under her partly showing thong, in movement. To follow suit, I hooked my jimmy from it's prison. Listening for our Mothers who were the only ones in the house. Both of our fathers at work, and we were only childs. It was as if I was crossing lines with my own sister in a way. Only intensifying my erection, I started running my hand up and down my cock staring at my phone for her next text.
Cousin: I love the look of it ;)
Cousin: I lick up and down the shaft as I grip your balls and fondle them in my palms.
She was faster than I thought she would be with one hand. Must have done this kind of thing before. I took my hand from my johnson for a moment to sext back.
Me: I pull you by your hand to lay on the bed. Spreading your legs wide apart. Licking up your legs to around that sweet punnany. I spread your lips apart to dart my tongue into your pussy. Working up to your clit.
Cousin: I grb ur hair in plesure.

Looking over, I began to notice how hard it had gotten for her one hand text. Guessing she's a sucker for a good muff diving, I decided it was now or never. Putting my phone aside as I moved quickly to pull down her pants. I kept her legs open despite her having a weak try at concealing her beautiful sex. As I got closer, her smell was delicious enough for me to want my fingers involved. After I licked around her wet taint to come back up, she kicked the door to a crack with a gasp in reaction. Rubbing my dick while licking around her clit, fingering her pussy with my index finger. I sprang up and lifted her to meet my waist. She sucked the head before grabbing my base and taking me whole. Hitting the back of her throat came with a gag. Looking through the cracked door, I turned to whisper a faint "I love you."

She looked up at me and said those were the magic words. Pulling me on top of her. I positioned my dick ready to feel inside of her. Looking in her eyes, I watched as they rolled in pleasure while I sunk slowly into her until my balls hit her asshole. I slowly worked up a motion, closing my eyes to heighten the feeling. Her pussy had gotten so wet, I lost feeling. I pulled out to wipe my dick on my bed sheets. Lifting the spot I had in hand to wipe her off a bit as well. Pushed back in to continue as I kept an ear for the stairs. The third step always had a creak to it since we moved in, so that became my two minute warning to wrap up. Reaching around to her backside with my right hand, I circled around her asshole with my middle finger. She was loving it judging by how she moved her neck to lick my left ear lobe. I began to finger her asshole while I kept a steady stroke. Pushing harder as my balls began to slap against my finger, giving me a deeper push in both holes with a slightly odd position.

The third step creaked, as I quickened my pace. My room being last down the hall next to our guest room. It took a few steps to reach my door from the stairs. I straightened myself and positioned my arms to have my hands gripping her shoulders from behind. Each stroke fast and deep. Her mother called from the steps, to which my cousin managed to moan a yes. I covered her mouth and continued, almost to end. She licked my pinky into her mouth, sucking and embracing her soon to come orgasm. My aunt sounded to approach the top of the steps, asking where we were. I let her wonder as I was about to come. Without any indication, my cousin had her orgasm that made her pussy squeeze my manhood. I couldn't take it anymore and shot my load deep into my cousin. I kissed her forehead as I stood to quickly dress, as she did the same. Her Mom searched her way around to my room, to see me massaging her back. Any suspicion about her moaned yes had been taken care of. I looked to my Aunt as I asked, "You want to go next?"

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