Before whenever i saw a pic : noticed a girl Now whenever I see a pic : noticed a boy Why bro why😭

I’m 19 my brother who is 16 showed me a video of one of his friends girlfriend and told me “isn’t she hot?” I feel like I did find her attractive and then I asked what her age was and he said 14. Why did I find her attractive if she’s that much younger than me? I’m also having trouble seeing girls in public I think are attractive but don’t know their age. They could be young and I still might find them attractive. Sometimes I force myself to look at these girls more than usual to really determine what their age is and if I find them attractive. I don’t stare intensely but it definitely feels strange doing it. Is this a problem that I can’t figure out if girls I find attractive are around my age? Or even if I know they are younger than me sometimes I might find them attractive? Why would I find them attractive if they’re too young for me?

I got a thought while looking at a picture of a kid saying that she’s going to look good when she’s older. Why did I have this thought? I know it’s not even true, as peoples appearance change as they grow up. Does this mean I was attracted to this kid? Did I think this image of a kid was pretty in a way that suggested me to have this thought? I know I’m supposed to label these thoughts as ocd but how do I know I don’t truly believe this thought.

I was normally in the bathroom.when i glanced on the mirror,you know,when ur face looks good on the mirror and u start looking at yourself? Suddenly,like an inner opinion, it said “your face will look hotter as a boy”. Its not he first time i had this voice,everytime i look at myself it come and i will never understand why its here.i ignore it everytime to not make another new theme ocd because im so tired of my hocd,but this time I can’t ignore,its annoying.