Yes, it's possible. Me and my bf are in an open RS, it took a while to adjust… At first, we kind of get crazy, having sex with lots of other guys, then we reduced it slowly to avoid hurting each other...

Yes - Belgium here. But it might be difficult to marry a foreigner, especially a non-EU one.

There's indeed plenty of other games than butt fucking, if you don't feel clean enough. And you must renounce to the perfect hygiene down there, there will always be bacteries (hopefully) and other stuffs, so go slowly on the cleaning (as you can destroy your mucus membrane with too many enemas). And to complete the already too long list of advices, I suggest you eat lot of fibers (as it helps to digest and thus to empty your anal canal, with the plus of helping you to loose fat)… Normally, if you're not constipated, your anus will always be empty enough to get fucked (and normally, you should not need to clean it - but your diet (alcohol, fat and too much red meat) or your lifestyle (too much stress) can induce sticky feces) if you don't feel the need to go to the toilet (as that need comes from the rectal distension that induces the need to expulse the feces).

When I was a student, there was a glory hole place in the (public) toilets of the university. I sucked LOT of dicks there during the lunch break, it was quite addictive. I also was fucked a few times through that hole, even though it wasn't really comfortable… I never swallowed cum and never contracted any STD (I only once had a bit of nettle rash around my lips because of an allergy to a condom that a guy had put on his dick... quite ironic  ). I stopped going there when I became a PhD student, as I also was appointed as a teaching assistant (of course the idea of fucking or being fucked by a student was quite exciting, but being caught was too much of a risk).
Nowadays, I sometimes go to the THALYS (Paris-Brussels train) terminal toilets here in Brussels, there is a gloryhole there. Well, a few weeks ago it has been filled (not by a dick but with plaster) and closed, but guys always find a way to drill a new one, so hopefully it will reopen soon
I love the idea of not really seeing the guy I suck, it makes me feel really slutty (of course)... but I discovered a few years ago that I also love the idea of being sucked by an anonymous guy... And in a way, it feels almost better than sucking a stranger's cock, because you don't really know what could happen to your dick after you plug that hole...
What do you guys think ? Do you feel the same thrill of "danger" and excitation when sliding your prick in a gloryhole ?

Yeah but NakedSword is just one site among the others. We should fetch statistical data from here and make another top ten…

Ok, it depends why I should want the guy to become gay.

I guess for the betterment of minkand, I'd like a lot of policitical leaders, especially far-right ones, to become reaaaaally gay (and craving for gay sex, intensely visiting darkrooms and stuffs… the kinkier the better). But we never know, maybe they are already gay and they hate themselves (just recall Jörg Haider in Austria, who happened to be gay and quite a bit homophobic - I remember one dreadful speech where he vomitted on gay people as a threat to the core values of family).

As for my own pleasure, I would love to turn Travis Fimmel into a real gay guy (I would rather do it myself, btw).

My fetishes :
1. I love manholes, especially hairy & already quite well-used mancunts.
2. I like tough guys that behaves like really slutty bottoms during sex.
3. I also have a thing for fisting (it's quite related with the 1st kink, I guess). It can be really sexy and intense.
4. I really like big toys (once again, pure logic).
5. I love double penetration (well, again pure logic).
6. I fantasize a lot about public sex (and I love sex in parking lots, some of my best sex memories are linked with that kind of places).

11 times in a day from jerking off : made a masturbating contest with a sexfriend when I was 17. He won with 12 rounds, my cock was too sore after the 11th, and was not able to even get an hard on anymore. I don't know if I still can come so many times in one day… The "recovery" period between each orgasm is longer now than it used to be
9 times in a day from a mixed combination of jerking off/getting blowjobed and fucking.
5 times in a long evening from being fucked (but my ass was also completely irritated after the fifth round, the day after, my ass was really painfull, I could only walk like a cow-boy, it was so obvious what treatment my butt had just received).

When I was 20, I used to be a total sub bottom. I couldn't fuck a guy arse, and everytime I tried I blew my load after a few seconds. But it changed when I met a really nice guy who was really patient and a wonderfull bottom, with a round bubble butt. He mad me fuck him and as he understood that I was too easily discharging, he always asked me to go slowly, to stop a while, then go back again. So I kind of learned to detect the moment when my excitation level was going out of control (the orgasm peak) just to avoid it, staying in the "plateau phase" and stop moving to come back to the arousal phase (it is classicaly considered that there are three excitation phases in orgasm : arousal, plateau, peak). While you enter the peak phase, it's almost impossible not to ejaculate (except if you train reaaaaally hard or were given that incredible gift of being multiorgasmic by your fairy Godmother).
That guy also showed me how I could control a bit my erection by working my muscles. He began by pressing on the spot between my balls and ass where I could feel the pubococcygeus (PC) muscle (the pelvic floor muscle), and made me contract and relax it. I did it a few times a week while stroking my cock during a few months. And this little exercise really improved my ability to restrain from ejaculating.
So basically, I think that working on "not rushing to the peak phase of orgasm" by just letting the excitation going to the "plateau phase" (2nd phase of excitation, the one just before orgasm) and then coming back to the "arrousal phase" (by stopping the movements) and also gaining control of the PC muscle by practicing the kind of exercise I described are the two best recommandations I could make, apart from the psychological aspect (which is even more important) of being really patient with your friend.

The three naughtiest things I did :
1/ I made an improvised sex party in my office with one of my client. I blowjobed him, he fucked me hard on my desk, and even (almost) fisted me. The door had no key and all my colleagues were working that day, there were people walking into the hallway and the window was not well blinded. I blew my load on another customer's file…
2/ When I was still a student, I had a regular fuck buddy who happened to be a truck driver. We fucked many time late at night, in his truck's cabin, on a parking next to the university campus. We almost get caught in the act by the police once (they were patrolling to control drug dealing activities). Another time, my friend invited a buddy. They double-fucked my already-not-so-tiny hole in the really-too-tiny cabin, it was a real gym exploit. But it was fun, I watched the parking lot while being really streched by their quite impressive tools
3/ I had sex with a total stranger one night in Barcelona. He could only speak Arabic, I can't and don't understand even one single word. So it was all going just by instict. The naughty thing here is that he fucked me while I was pressed on the window of my hotel room, it was dark outside and the room was very well lighted : so everybody downstairs could see him fucking me (hard, I must say). Well, actually, it happened because of me : I was inspired by the Mc Queen's "Shame" movie scene depicting that position. It was a real great moment, that one.