Jerking a Cut Cock

So I have an uncut cock, as you can see from my profile. However, my husband has a cut cock and I do not have much experience with a cut cock. Is there a special way you have to rub it or stroke it for me to not get him raw? I have been using lotion, but I have transitioned to oil-based lube whenever I jerk him off now, so he won't get raw. Is there anything else I could do to please him and not get him raw? Then again I am 20 and he is 57, so any ideas or suggestions would be greatly appreciated. Thanks in advance.