How to give head for longer
My girlfriend and I (27f and 25m respectively) are currently due to medical reasons unable to have penetrative sex for a while. During this time she wants to give me blowjobs more often but can’t do it for more than a minute before she has to stop because her jaw hurts. Am I doing something wrong or is there some kind of trick to this so that she can give me a blowjob for more than a minute or two?
Extra context; I’m fairly large (8in long 3in thick) I’m pretty experienced sexually and she is not, I’ve also had almost universally no one able to fit the whole thing but never before having to give up that quick? She gives incredible head like life changing but only for a minute and especially since we can’t have penetration I’m really hoping to find a solution I can slyly suggest to help.