I'm a male, who appreciates and enjoys looking at great tits, pussies, and clits. I, also, appreciate and envy great cocks, balls, and foreskins.
I like seeing others enjoy themselves--whether they're alone or with others. Thus, I appreciate great fucking and orgasms with lots of cum, squirts, and contractions.
I always try to compliment what I appreciate and to never put anyone down.
As to what I look for, or fantasize about -- threesomes with my wife and another female, or a female and any number of males. This is where my bi-curiousity comes in. I think it mostly comes from my being envious of men with bigger cocks (I have a very average 6 in. cock) and men with foreskins (I am circumsized).
While I enjoy giving anal sex to my wife and she enjoys receiving it, I do not enjoy it when we reverse the roles. Thus, I can fantasize about giving anal sex to a guy and jacking his cock until he comes, since it's much like fucking a woman's ass and rubbing ner clit until she comes.
Finally, since I enjoy mutual masterbation and both giving and receiving oral sex with a woman, I can fantasize about jacking a guy off or having him jerk me off, and sucking his cock or him sucking mine. (I have a bi friend who swears that men give the best head!)
Hence, all of these kinds of things are what I look for in vids and pics.