Have you ever had a orgasm while having your nipples played with/sucked on, but not masturbating or any other direct genital stimulation?

Yes

Yes I have, and was dumbfounded when it happened lol. I never did a lot of nipple play before because they're soo sensitive and such to a point that it felt uncomfortable. But once he tied my hands behind my back and I sat astride him (but he wasn't in me, and no other contact with my genitals) and simply fingered/played with my nipples...until I came. It was freakin amazing! A certain way or doing it (and also sucking) reeeeally hits the spot omg; I felt a direct 'zing!' straight from my nipples to my clit and I even kinda felt some kinda feeling in my throat lol. But for me there's a fine line between pleasure and pain (the bad kind lol) in the nipple area, and it's like a fine tuned instrument; play it the right way and music is made hehe.

Yes absolutely!!

I have come very close... I might have been rocking myself and not been aware of it...

no, I've heard of that, but never knew if it was true or not

Yes, I can have orgasms from having my breasts caressed and licked.
I have orgasms quite easily having my body caressed or while kissing, especially on the neck. I can have orgasms even while giving oral sex to a man.