[DaveMack]

I think this is a worthwhile question and I'm sure there will be differing opinions but I think if not born that way, at least born with a predisposition towards having a lot of sex with a lot of men.

I base my idea on my own limited experience with women but I see similarities in behaviors.

My first wife was a slut. She was 15 when we met and not a virgin and we fucked for a couple of years she got knocked up. We were married in due course and eventually she lost the pregnancy. Back then we still thought we were in love so we soldiered on as it were.
I came to find out later that she had been cheating on me with others even before we were married and it continued even though she was pregnant after we were married. However, by the time that was revealed we were already swingers so it was kind of anti climactic. My point is, she was an incredibly horny person. She simply couldn't say no to the opportunity to have sex.
In order that we could save money to put a down payment on a home her mother who was a widow suggested we move in with her. She had a huge house with an apartment upstairs that wasn't being used. She offered it to us for very cheap rent if I would do the yard maintenance and some repairs. Good deal. We moved in. Once we were living there my wife and her mom would go to bingo every Wednesday and Saturday night. Week in week out they went to bingo without fail. After bingo they would come home with beer on their breath and a bit giggly and talking about who won or lost at bingo. Yeah! Right!
About 5 months after we had moved in, mom in law and ex come home from bingo on a Saturday night, again a bit tipsy. I had been babysitting her other kids while they were out and the kids were now all in bed.
They had brought home some beer and each had another and I had a couple and my wife started getting frisky. So I kiss her back and we hug and I groped a tit. Suddenly there is a weight on the couch beside me and mom in law is sitting there groping my cock. I freak. I go real still because I'm imagining my wife is gonna go nuts. Nope. Wife says relax. She likes you too and she gave me a deep kiss. Then she said now kiss my mom...which I did because damn, she was hot. Long story short, wound up fucking them both that night and it happened many times after that.
Once it was all in the family so to speak, there was other news. My wife had been screwing her boyfriends from school since she was 14. She had been banging some of her mom's boyfriends since she was 15. On bingo nights, they went to bingo for an hour and then went to a local hotel tavern and picked up guys. They would get a room and the gals and the guys would all fuck each other.
So once that cat was out of the bag, my wife and her mom fucked me together and singly several times a week. They also kept up their "bingo" nights. My wife was still under age to get in the bar at that time but, things were slacker then. Mom in law knew the guy who ran the bar and vouched for my wife who was not yet 21. She was 18 but on her mom's say so had been getting in the bar since she was 16.
So then her mom and I started to develop a relationship and it got serious with us. My ex didn't care because she was expanding her sexual circle and had met a guy she eventually married. He was older than me and had a LOT more money and that was the way she decided to go. By the time we split, I was relieved to see her go. My relationship with her mom lasted another two years until she met a guy and moved to another city.
So, to sum up, we have a cock crazy mother and an equally cock crazy daughter. I think to some degree how horny you are is related to genetics.

Situation two. My current wife. She has been masturbating since she was in grade school. She would have loved to start fucking a lot younger but she was raised by incredibly religious and conservative parents and older siblings who watched her like a hawk. Being raised on a farm she had to take the bus to school and was driven by a parent or older sibling to any after school functions like basketball games. If she went into town her older sister was always there.
My wife got her tits and her period when she was in grade 5. She was a bit of a novelty in that she was the only girl in class who had boobs. This of course caused some of the other girls to immediately take a dislike to her and the boys became very interested. She would have started fucking then if she had the opportunity but it never came. Her education was in a country school and she let the boys feel her up and finger fuck her under a set of back stairs on the building at recess. That was about all she could pull off at the time. She was a virgin until I got her cherry at 17.
So, once I got her cherry, because of my background with my ex and he mom, I told my wife what I wanted in a woman. I was open and honest about it and fully expected her to tell me to get lost. Happily, once she got over the surprise, she was all for it couldn't wait to start. We got her started soon after. Once she did start, she was crazy for it. She had me arranged the first dozen or so times and then, once she had some self confidence, she was off on her own and she picked guys up like crazy. I can't tell you how many dates she showed up late because she picked up some guy at the grocery store and fucked in the car or picked up a guy from her college and fucked in the car. She would pick me up, give me sloppy seconds and then we were off to the bar to pick up another guys for her to play with. She went ape for cock and she is still like that even after menopause.
In addition, while her older siblings were prudes and wrapped up in the church. Her younger sister was becoming just like my wife. She started fucking when she was 17 and pretty much became the school pump before she graduated high school. Once she graduated when she moved into town to go to college she lived with us and I often did wife and sister together and they also went to bars and dances to pick up guys. So now we have two slut in one family.
Fast forward about 12 yrs. My wife is 32 and she has a thing with this older guy. He was in his late 50s. He had picked her up in a bar and they fucked. Over time they fucked a few dozen times. So once the were familiar with each other they would talk a bit about themselves once the fucking was done. Turns out, he was from the same small town where her mom grew up and went to high school. Once he found out who her mom was he said like mother like daughter. My wife asked what he meant but he wouldn't say. Over the next few times they fucked, she nagged at him to explain what he said. He finally did. It seems in high school, her crazy religious mother was the town pump. The older guy my wife was fucking had fucked her mom in high school. Being from a different generation and a different time, the old boy felt quite embarrassed about it. To him fucking a mom and then years later the daughter was a bit too much of a taboo for him and he ended the relationship. My wife however got quite a kick out of the fact that a cock that had been in her mom had now also been in her. She really thought that was cool. It also provided her with some information about her mother's background. How the old gal went from fucking her brains out to religious nut we have no idea. However, now we have slut mom and two slut daughters. Again, this leads me to believe that there is something genetic about how horny a woman gets and how much sex she needs.

I am sorry this was so long but am wondering other people's opinion about whether sluts are born that way or, through some external circumstance become that way. What do you think?