Is it normal that the only thing that makes me horny is....

Seeing pictures of people kissing in clubs and the guy has his hand in her pants, as in, fingering her. People take pictures next to them but they don't realise cuz they're too busy doin' their stuff.
I dont know why but it makes me SO horny. I find it hard to get horny.. Not very keen on porn and I never had an orgasm (Only had sex twice iunno if this matters?). Anybody feels the same?