Are MFM threesomes becoming more and more common? When new gf brought up topic of threesome i assumed two girls and me but she tells me that the two men variety is far easier and much much more common if little talked about, is this so?

Over the years, mfm, with and without dp along with additional men gangbanging one woman has become more prevalent in porn. It was more common to see to woman work on one guy in an fmf and very rare to see it the other way around. Since it's become more common in porn and with the advent of the internet the idea has crept into the minds of more and more people. Also, with mainstream films including scenes of mfm sex it has been introduced to an even wider audience.
Couple all of this with changing morals and ideas about sex and love and many more woman become free of their inhibitions and you've got the making of mfm encounters happening more and more.
i want one with my wife!

They are becomming more and more common because it is a lot easier and almost a guaranteed good time. Even if the guys don't touch each other and concentrate on the woman, she is happy. Have you the will and stamina to take on two horny ladies? If you are looking to answer any bi curiosities, you can do that in a MFM threesome too. If asked, most guys would do it just to satisy the woman.

more females want to do this than admit....

It is more common than a FFM

Mmmmmm i am not too sure as most of the profiles i see on dating/sex websites are of couples who are looking for a 3sum are looking for a women only

I say fair is fair. If the woman gets mfm then the man deserves fmf and vice versa

If she wants to do it with two guys, you can decide if you will be one of those men. It is something she wants to try and just may be might be something she will always want and need in her life. You need to accept her and her desires or get another gf.

While I still think most males would prefer a FMF, the fact is that most threesomes are initiate by a couple looking for a third. As such, they are loloking for somebody who would actually be keen to get into bed with two strangers. While most of the sites might say they are looking for a second female, I think you'd find a lot more (single/lonely/curious/that way inclined) males who would actually go through with it.

Not making a normative claim about which is better (personally I'm keen on both kinds of threesomes), and I certainly know that there are a lot of women out there who are keen on FMF, but if you're talking about popularity, that'd be my guess as to why.