I am a married guy and love sex with my wife, but a while back, I started fantasizing about sucking cock. I have since set up a few hookups where I got to suck a cock and I loved it. The only thing is I am not interested in anything else with a guy. I don't want to kiss, nip play or anal. Just sucking cock. A few of the guys I hooked up with tried for more, but I had no interest. Is this common? Thanks.