Feasting and Tasting Sends Orgasms
Your acronym, FATSO, is nifty, but your question seems contrived. While I know for a fact that some people are turned on by the scenario you describe, I have a hard time believing that it never occurred to you to tap the particulars of your fetish into a search engine. Anyone bright enough to come up with that acronym, and savvy enough about kink to use the phrase "chubby chaser," knows enough to Google their kinks. So I suspect that you know damn well what you are. I also suspect that you're male and that you wrote this letter to get your fetish some exposure. But, hey, on the off chance that you're female and Google-impaired
People who get off on stuffing their sex partners with unhealthy food and watching them grow are called "feeders"; people who get off on being stuffed and getting fat are called "gainers." The feeder/gainer fetish goes hand in hand with fat fetishism, of course, although there's more to your fetish than simply being into fat guys or potentially fat guys. We live in a society that's deeply conflicted about fat and food: we're not supposed to be heavy, but many of us are; we're not supposed to eat junk food, but many of us do. Intentionally getting fat, or "forcing" someone to get fat, violates taboos about what we're supposed to find attractive; since being fat isn't healthy, "forcing" someone to gain weight is subtly sadistic. By "forcing" your boyfriend to eat a lot of crap, you're pleasuring him and hurting him at the same time.
Why are you into this fetish? Hard to say--and if I could tell you why, would it make any difference? You're into it, and a theory about why isn't going to change anything. Since your particular version of the feeder/gainer fetish isn't going to hurt your boyfriend--unlike some feeders, you don't want to get him so fat that his life is threatened--you might as well get down to the business of enjoying it. Tell the boyfriend about your sexual obsession, then hand him a grocery bag filled with junk food and order him to strip down and eat every last crumb. Because he's in shape and you want him to stay that way, FATSO, he obviously can't indulge your feeding fetish very often. But gorging on junk food once or twice a year won't kill him.
A year and a half ago I met a VERY inexperienced girl at my college. She was VERY inhibited until she confessed that she wanted to be tied up. Her inhibitions vanished--but only when she was tied up. Fast-forward to now: She's dating someone else, and as I'm checking out an amateur bondage website, lo and behold, I find pictures of my ex. I'm sure it's her; I recognize a birthmark, and the position she's in is one of her favorites. She would never agree to being photographed and would never want pictures like these posted. She never even wanted to talk about what we did! So I'm positive that her new boyfriend is taking the pix with a hidden camera and posting them without her permission.
Do I tell her about the pictures? I'm afraid that if she finds out, she'll drop out of school in shame. I've been twisted in knots about this for almost a month now.
Bound to Displease
A few things to consider: First, pictures posted on "amateur" porn sites are quickly downloaded, copied, and passed around, and they ultimately wind up on porn sites all over the web. So you can tell your ex about the pictures, BTD, but she's not going to be able to do anything about them.
Second, I assume that her face isn't shown (you would've mentioned if it were otherwise), which means that only people who are intimately familiar with her birthmark and her favorite bondage position are likely to recognize her.
And third, your best guess is that the pictures were taken and posted without her knowledge, but your guess is based on who she was back when you two were together. It seems equally likely that she's more open and adventurous these days; after all, she's told her new boyfriend that she's into bondage. Like a lot of kinky people, your ex no doubt finds it easier to talk about her kink every time she tells someone new; along with this newfound ease, your ex may have a newfound sense of adventure. She may very well have posed for those pictures willingly and given her boyfriend permission to post them--or, hell, she may have posted them herself.
Or maybe not. In your shoes, BTD, I would tell my ex that I saw her pictures online. If she knows about them, she may very well dig the fact that you, of all people, saw them. If she doesn't know, well, then she needs to know that the guy who's tying her up these days can't be trusted.
Are you crazy? "Female sexual reserve acts as a built-in check on male sexual excess"?! Are you seriously implying that frigid bitches keep straight men in check? I'm a straight woman, Dan, with an amazing boyfriend who I fuck all the time. I would fuck him MORE often, but it's not physically possible. BUILT-IN CHECK!? Please tell me your assistant wrote that one!
Who You Callin' Frigid
How many times have you walked into a dark park or the back room of a bar and been fucked in the ass by a man you couldn't even see? How many blowjobs have you given in a single sex club in a single night? How many times have you chatted with a guy online for 10 minutes before inviting him over to your apartment to fuck your brains out?
I'm guessing that you've done these things exactly, oh, ZERO times, WYCF. Well, those are the sorts of things that many gay men get up to--too many gay men, not all gay men. Fucking your boyfriend all day, every day? That's just dandy--but that's not what I was talking about. Straight women, as a general rule, won't have tons of sex with tons of different people, although most are willing to have tons of sex with one man at a time. Men, on the other hand, will have tons of sex with tons of different people--or I should say, "Gay men will have tons of sex with tons of people, and straight men would if they could but they can't because women won't."