In no order:
1. Femboys/Crossdressing, there's just something really attractive (and rather bold imo) to me seeing a guy who really enjoys voluntarily wearing girly clothes to any degree and breaking from the social stigma, and because of that that makes him hot to me by default. That's also my Gynophillia talking, I prefer guys feminine, whether it be looks or personality or both, rather than masculine, but at the same time not going into dickgirl/shemale territory. Huge bonus points if said femboys are dominant, which are really rare in porn but STILL I find dommy ones hot as fuck because of how much of a 'rare fruit' they are so-to-speak.
2. Knotting. That intimacy in being locked with your partner for a while, allows for more cuddles and whatnot, I love it.
3. Size Difference.. Not micro/macro, but 1-3 feet max, I love those couples where the shorter one has to stand on his/her toes or get picked up to kiss the taller one. Hnnn.
4. Incest, especially twins and sibling/sibling, I love some variants of incest. I very much prefer the M/M smut, so any variations involving that are my fave, don't mind the M/F ones too much either. Brother/Brother, Father/Son, Mother/Son, Father/Daughter, etc. No F/F variations though, I'm really not into F/F.
5. DILFs/Older men, but moreso the former, love the more experienced partners.
That's only a few, however I barely have many, if any, really kinky fetishes worth listing, I guess incest can count as one that's kinky? Since it's taboo and all.. But other than that I'm a bit more vanilla fetish wise as opposed to some others, not into hyper, chicks-with-dicks (Definitely not into that), corruption/mindbreak (That too. >.<), pregnancy of any kind, or any of that crazy stuff.
Edit: You know what, fuck it, here's 5 more just because, struggled on what kinks to put up here as well:
6. STOCKINGS (Especially on guys <3 Kinda coincides with my femboy kink)
7. Vocal partners. A.k.a loud moaning, literally begging for it, neediness and all that sexy shit to let them know you really want it.
8 Excessive cum/Cumflation (Minor that is, not exactly the degree where you look preggo, not saying I hate that look, but a little pudge from it is attractive without going overboard, and for the former, pint-fuls of virility is hot as all hell, especially given if it's enough to cause a good creampie. These two fetishes together are the main reason I hate condoms in porn.)
9. Large male bits, but not to the point of hyper. Foot long is my limit for dicks, gotta have those huge fat balls too.
10. And lastly, simple M/M romance to top it off, build up, it all that sappy stuff, I don't even care it makes the sex much more sweet to me when it comes. Or ya know just good ol' M/M in general. >w>'
I went off rambling I'm sorry. lol