Hello, I've been a lurker here, but this thread, as well as a few others like it, makes me realise there are many people in similarly grey areas as me. Today i am a bit talkative, so I'm just gonna make a first post...
I think straight or not straight is a definition entrenched in tradition. Going down to basic motivators in humans, people enjoy physical pleasure, and also to reciprocate that pleasure, the only barrier is a psychological one set up by social norms, so the act of giving or receiving sexual favors from someone does not mean much about the person's sexuality.
Mentally, I believe it is entirely possible for 2 same sexed people to fall in love, even if both have absolutely zero interest in the same sex, eg love through internet chatting...
However, a person's sexuality would be an issue that is determined by how attracted he or she is to different body parts and behavior, as well as what sort of role he/she prefers to be in a relationship, and what sort of role expected of the other person.
Combine all of this, plus the pressure of upbringing and societal norms, and you get a "straight" person if the other person happens to be the opposite sex.
For myself... I am obsessed with the male body, big cocks and balls, I want to touch them and have them myself, thus I am a gymrat, practise PE, and will also discreetly observe other men in the sauna a lot.
I appreciate a blow job or hand job or giving a hand job back, and enjoy candid conversations about everything under the sun without having to worry about what the other person might think of me,
I would love a long term friendly relationship with a hot guy in this way,
but a romantic relationship with a guy, kissing, or anal sex does not appeal to me at all.
On the other hand, beautiful women sets a twinge in my heart when i see them, it's different from seeing hot guys. With hot guys, I can't stop looking, I'm envious, jealous, want to know what's in his pants, wonder how he gets that way. With beautiful women, i want to get to know them, they are like an incredible art i keep thinking about and fantasize how it would be like having romantic exchanges with them. But comes to sex, I like the idea penetration into pussies provided it's a really pretty pussy, but I am not strongly aroused by voluptuous female bodies, much less anything lesser. It's like mentally I'm interested, but physically, my cock doesn't know how to react...
Anyway, as a result, i am turned on by male solo scenes provided the guy is good looking, muscular and hung. Straight porn as well, provided the camera focuses enough on the guy who has to be hung and muscular and goodlooking, the girl is fit, has a sweet face and has a pretty pussy. Unfortunately there aren't enough straight porn videos like that, so i typical watch straight guy solos instead.
Gay or lesbian sex doesn't appeal to me at all.
Oh, and i identify strongly as male, i do not want to become a female at all