Some background: I am a retired boat captain. I have been described by my neighbor's grandkid as: an old white guy. I've been married for 48 years, still look at pretty girls, and classify myself as heterosexual. I've had a Miata and a diesel pickup... for different uses. I've had a bunch of Harleys, 4 Goldwings, a couple BMWs, other motorcycles, and now on my second Vespa.
Vespas have curves and style. I like curves and style. I don't name my cars, trucks, or bikes. Every boat I've owned or driven has had a name and they are all called "she." While I think this poll is basically silly, I looked my Vespa over closely... I could find no genitalia.
As far as the sexuality/gender of any rider (or anyone in general): it doesn't matter. Unless you are about to have sex with someone, their sexuality or gender is none of your business. If you judge someone by their sexuality or gender, you are a sexist and/or a bigot.
To the title of this thread: masculine, feminine, or other... it's a machine. Granted, a beautifully designed machine. My wife looks better riding it than I do, but that is because she is better looking than I am. She also looks good riding her angular designed Xmax.
I have been riding for 53 years. All kinds of two-wheel conveyances. Not once has my sexual preference played a part in my buying decision. I don't give a furry rat's rear what someone else thinks of my choice. Why should it matter?
To paraphrase a former President: I did not have sexual relations with that scooter.
Are we running out of things to talk about?