As far as I can tell, and based on my experience, a nerd with a guitar is somehow considered hotter than someone without one. Male or female there seems to be no exception to the rule. I remember as a child watching Elvis gyrate with his acoustic guitar on my TV while the girls screamed and tugged at their hair. Two things seemed very clear to me.
Thus I started my lifelong affair with my fretted friend and its artful tapestry of chords and melodies.
Guitars themselves have changed little over time, as a “63 Strat” doesn’t look much different than one made last year. The same for the acoustic guitars. I could also say that about people.
I once asked a female friend of mine to explain the “guy or girl with a guitar phenomenon” and why the instrument amps up their appeal. Her opinion made a lot of sense to me. She stated that, “Most guys and some girls don’t often show their emotions or mastery in an art, but when they play and sing, their emotions and talent are on display.” I personally think it also shows confidence. What is sexier than masterful, intimate, humanly and confident? ALL People find that attractive. Right?