Maybe you should try telling him how you feel. Explain to him that he is ruining it for you. The key to good sex is communication. If you can't even tell each other simple things, then maybe you should take a step back and reexamine the relationship as well as yourself. Just try telling him. If he cares at all about your pleasure, he'll understand completely.
"We can live like Jack and Sally if we want.
Where you can always find me
And we'll have Halloween on Christmas
And in the night we'll wish this never ends
We'll wish this never ends..."