I don't think my taste has changed so much as it has expanded. I was about or nearly 18 years old when I discovered SNSD in 2010. For sometime, I only listened to them, then expanded into more girl groups. I would tend to like cutesy Kpop more, but I did enjoy the sexy style as well. Boy groups didn't really win me over at the time, I honestly had no interest in them for some reason. In 2011 though I gained interest in TVXQ so I only followed them as far as male groups went, and a bunch of random boy groups songs. Then in 2013 when B.A.P dropped "One Shot" (and this was the first time I ever heard of them), I just fell in love and was surprised how different they were from any boy group I had ever seen (those push ups, man). Was even more shocked when I saw the "Mini" collab with Apink and saw their cutie side and learned of their versatility. So really, my taste merely expanded. I still love girl groups, especially cutesy stuff, and I love when boys do cute concepts too. I do think I like boy groups more than girl groups now, mainly as I listen to them more, I still adore girl groups and generally find both equally appealing.