When he looks like coming, stop dead for 30 seconds and then give him a bit more. The longer you can keep this up, the harder the volcano is going to blow.

When he is coming, cover your teeth and bite the end of it in rapid pulses - about twice a second. Hang on to your hat when you do this because it will be a wild ride.

Try not to pull a face when you've got cum in your mouth - after all, it's his and you love him. Kiss and give it back to him if you want but don't make a big deal of yuck-spit-spit. After all, he just loves to get wet from ear to ear when you're riding his face!