Something else to consider is talking dirty to him. Describe to him how ready you are to feel his big cock up inside your tight backdoor. How you can't wait to feel his balls resting against your ass, feeling him buried deep inside you. It doesn't have to those exact words, say what feels comfortable, but let him know how excited you are to be doing this with him... I know it would get me rock hard.

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Put me on wheels and I'll turn tricks.

Clever? Nah, I ran out of that years ago. But if you find this, let me know, k?
"The road goes ever on..." ~ Tolkien

In memory of my friend skip...
Go then, there are other worlds than these