TheDetective

To put it as simply as I can, gender/race doesn't matter to a pansexual. Pretty sure a lot of pansexual's have their own kinda term for it since it can vary from person to person, but it has ended up boiling down to pansexual's not caring for gender or race, sometimes even species. Could say a lot of hedonistic people are pansexual.
You forget one very important thing there; it's fangirl's. Not saying all, but a good deal of fangirls have been known to fly off the handle when they see someone writing a story about their 'pairing' and find the roles are reversed or one isn't just the 'seme' and 'uke' all the time. Main reason why I like to stay away from writing pure fanfiction and putting my own OC's into the mix, the fangirls/fanboys, I stay away from those as much as humanly possible.

Interesting topic, though this thing has been revived three or four times now right? This is the most revived thread I've ever seen in my life, thank you for the experience. Now on to the actual topic, can women write male sex scenes? I don't see why not honestly. I mean it's like everyone has pointed out at one time or another in here; research, DO RESEARCH. Anyone can write in any perspective if they just do enough research or at the very least, some kind of research. I'm a guy, but for years and I mean YEARS I studied the female body and the gender, also helped that over half of my family is made up of girls ha ha. But I did the research, created a pair of male/female siblings on a forum and ended up having an rp with a girl involving the siblings. First sexual writing I ever did in the perspective of a woman in my life. Person I was rping with asked me if I was a girl and just lying about being male on my profile, so that right there should tell people just how accurate my writing of a female in a sexual scene was; remember I'm a guy to.
All amounts to doing research, the more research you do the better you are likely to be in your writing of the opposite sex. Also I would like to just say I agree about the dick girl comment on the first page, one involving yaoi/slash and the like. I mean people who only do their research on yaoi alone is going to be a poor writer for male/male stories of any kind; at least involving sexual scenes if nothing else. The only difference between male/male yaoi and dick girl's is often the fact the guys in yaoi just don't have breasts. Don't get me wrong, I actually do happen to enjoy yaoi, but my opinion stands. Mean you don't just apply lotion or cum or anything slick, slimy, or wet and then just slide on in slowly or in one mighty thrust, I mean that would not only hurt, but cause bleeding like you wouldn't believe. Lotion or what I said above is a good start, but you always have to at least ease in an inch and pull out, then go in an inch deeper the next time and repeat the process until your either balls deep or both men are comfortable and can start on the thrusting portion.
Now that doesn't go for just guys, that's basically anal sex in general, or at least the first couple of times you do it with the person. Feel like I've went off topic, so I'm just gonna end it here.