First blowjob... not as expected?

I'm bicurioso, but haven't had any experience until today. After years of fantasizing about sucking my first cock, today I've done it. I had sucked a dildo many times before, and I did enjoy the real experience. However, I didn't get even close to as horny as I thought I would. Could that be that I'm more turned on by the thought than that the real thing?