I am aroused by all breasts from A to D, and find braless very sexy. Definitely topless outdoors is ultra sexy. As for nipples, my ex-girlfriend had very arousable nipples, and every single time we had sex, she would orgasm from just my tongue and fingers rubbing her nipples in a certain way. Of course she would also cum from cunnilingus and then my fucking her pussy, and even my fucking her ass. She was highly orgasmic, and always had multiple orgasms. But we always started with her nipple orgasms. I hope the OP went braless and even topless on her vacation back then in 2016, and had a wonderful time. She, like all women, should be proud of her breasts.