[F4M] Your daughter's best friend takes advantage of you during a summer vacation.

Me and your daughter Mackenzie had been best friends for longer than we both could remember. Everyone always joked about how we were practically sisters the way we were attached at the hip.

There was never a time I wasn't at your house, either sleeping over or just being in Mackenzie's room nearly every day. It was second nature to say hello to me after school or during any holiday break. Your house was my second home and I was a bonus daughter you got to see grow into a beautiful young woman.

As I matured physically, my mind drew interested to boys, just like any other young woman. While Mackenzie fawned over boy bands and random boys at school, I preferred more... aged taste.

I was vague at first. I would compliment your cologne sometimes, spark up random conversation just to have your attention, or hang out in the kitchen sat on the counter while you cooked dinner for everyone. I made sure to be discreet, like I viewed you as a father figure, when in reality I adored you in ways that only my body could explain.

I loved how much larger and taller you were than me. The veins along your muscular arms when you rolled up your sleeves. The beard you kept so nearly trimmed on your face, peppered with greys. The depth in your voice and the way you spoke to me, calling me cute pet names, just like you did Mackenzie... but they meant more to me.

I thought about you everyday. As I laid in bed, staring at the ceiling, I imagined you climbing overtop of me with your massive arms sheltering me in. I imagined you staring down at me with those deep eyes, whispering dirty words to me, sliding your huge cock into my tiny body. I touched myself thinking about how big you were, how much you'd stretch me out, how it felt for you to cum inside of me over and over. It was torturous how badly I wanted you, because I knew you would never see me as more than a bonus daughter... but I wanted to change that.

As usual, Mackenzie asked if I could join the family on yet another summer vacation, which you didn't hesitate to agree. We had both been very busy in our first year of college and you had missed us both terribly. Our company was something you had grown used to. It would be nice to have the girls together in the same roof once again; the noise was comforting.

The first day, Mackenzie and I dove into the pool in the backyard while you tended the grill and your wife lounged with a never-empty glass of wine. The day went by fast. We all enjoyed each other's company. I enjoyed seeing your face again after some time apart.

As night crept up, Mackenzie had gone upstairs. The sun tired her out and after her shower, she had fallen asleep. Your wife had finished an entire bottle of wine to herself and passed out in the master bedroom upstairs. She would sleep like a rock. You had a few too many beers and had fallen asleep on the back patio's couch, sitting beside the fire pit, laid on your back.

I was the only one still awake. Perfect.

I was still wearing my skimpy little bikini from earlier. A stringy purple bikini set that hugged my heavy breasts perfectly and squeezed at the round mounds of flesh desperately. The straps at my waist were tied tightly, digging into my wide hips, and barely covering anything more than what needed to be hidden.

I had snuck outside. I noticed you fast asleep, laid on your back, with a... little bit of company piercing out from your swim trunks. This was my chance and I wasn't going to waste it. I needed you to know how I felt, and I needed to get these thoughts out of my head.

I slowly walked over to you and climbed onto the couch. I rested myself gently on your lower lap and reached to the top hem of your swim trunks, pulling them down, and watching your mostly hard cock stand up straight in front of me. I gasped and licked my lips at your massive size. I couldn't wait to feel you.

I heard you stirring in your sleep, and before you could say anything, I pushed my bikini over to the side. My soft hairless folds were already soaked thinking about doing this to you before I even came out here.

I hovered over your cock and slowly guiding your mushroom tip towards my entrance, coating you in my juices, before sitting my bubbly ass down onto your lap.

Your cock filled me up. Completely. I moaned while I say all the way down, filled up to the absolute brim with your cock. It was the best feeling I ever had. The way you stretched at my tight pussy, claiming every inch of me, kissing my cervix. I could see a slight bulge in my lower abdomen from how huge you were inside of my cunt.

You were stirring a lot more now. I definitely had woken you up.

I began to shush you softly. "It's okay, baby. Be quiet. Feel this tight little pussy around this big fat cock. You like it, don't you? You like how tight my young little pussy is?"

\----

Hey!

I want this to be a longterm story between the both of us, where we explore our little affair and have some fun with it. Lots of sneaking around, risky sex. Obviously, there is some force at first, but you can take control after some coercion from me. Or maybe you're drunk and think this is a dream and go with it. Whatever you want.

I'm really into size difference, age difference, and taboo dirty talk such as using age and comparisons in dirty talk. Like "my wife doesn't feel this good" and "you're such a slut for a man twice your age" etc

Kinks:

DDLG, praise, soft degrading, hair pulling, eye contact, dirty talk, blowjobs, cum swallowing, cunnilingus, clit rubbing, being fingered, squirting, breeding, mating press, anal, neck grabbing, manhandling, massive cocks, size difference, soft face smacking, being spanked, having stockings or leggings ripped open, clit sucking, overstimulation, begging to cum, handjobs, risky sex, hold the moan, mouth covering, pet names (kitten, babygirl, daddy, sir), mirror play, shower sex, noncon, free use, public sex, car sex, doggystyle, toys, mutual masturbation, thigh riding, being told what to wear, having my face cum on, nipple play, face grabbing, pet play, collars, cages.

Limits:

Watersports, rimming, musk, sweat, odor, beast, blood, gore, weapons, abuse, humiliation, extreme degradation, race play, misogyny, brain break, ball play, fisting, pegging, extreme bondage, latex