Okay so. I've been dating a guy for a year and a half and we've developed sexually very slowly. We've been having full on sex since May. Anyway, last week I sucked his dick for the first time. I hadn't before because my jaw is very screwed up and painful. (I have TMJ disorder). It hurts to keep my jaw open. I managed to do it but it does kind of hurt and I worry my jaw will cramp up. Anyone experience this or have tips? He wants me to do it again tomorrow. Any tips for blowjobs in general? I'm not really sure what to do. Like, I understand what to do in theory but not practise.