Well, if it's a turn-off, better they know now than later.
I'm one of the ladies in Austin with long "wingflaps" as our buddy Kosher refers to them. I know that Traci the Temptress aka hotpinkpanties was purported to have some as well. Years ago, I asked my gynecologist if they could be trimmed as I was embarrassed by them. He suggested I give it further thought. Soon after, I had a fella go ape-shit over them! He would kiss them, lick them, suck them, praise them... mmmm mmmm I finally got it! lol
I have noticed that many ladies w/ long labia minora tend to have high-riding clitoris'. During intercourse, the lips will pull the clit down into the "action" allowing rubbing by the cock and increasing her level of excitement. Pretty neat trick.
One of my guys said it feels like the lips are kissing his cock when he slides it slowly out... *Oooh, I like that!*
Another anecdote: I sometimes refer to my labia as "deflated balls" since they dangle noticeably. LOL
So, regardless of my earlier displeasure about having "butterfly wings", I now embrace them for what they add to my sexperience. They serve a purpose.