Is it normal to get aroused from vibrations?

I'm a guy and I have experienced orgasmic pleasure from sitting on my bed and using a strong vibrator to vibrate the whole mattress as I'm sitting on it. The vibrations travel through the mattress all the way to my body. I can feel waves of pleasure with each vibrating pulse throughout the mattress. Is this normal? I love the feeling so I'm not complaining but just wondering if any other guy has experienced this. The orgasmic feelings keep going and going and the feeling never stops, no ejaculation.