When I was 20 nice girls didn't, so ( not knowing any bad girls ) I had no opportunity to be "horny".
However, as a schoolboy ( at a boys only boarding school ) even shampoo ads in magazines gave me strange feelings, but given sex education was not even considered back then I didn't know what they were.
When I was 50 and had discovered Thai girls in LOS I was either doing it like a hamster, or saving up to be like a hamster. That happy stage of my life only ended when I got married to the wrong woman.