I agree with Bare4you try using your hand and mouth same time and swtch off. Also ask the guy what gets him off quick. I can last a long time too, but I know the areas that get me off quick. Also tell him to visulize something that turns him on, what ever he normaly would masterbate too. Last thing you can try is the anal g spot, slide your finger in his ass and rub the area just above his balls. If this is his first anal experince just take it slow and use lube. When done correctly I can rarely hold out long.