First off,comparing you bf to a porn star is unrealistic, secondly, no two people are alike.
Porn stars are very rarely "hard", they are just hard enough to get the job done, and everyone knows, the less hard you are, the more flexible you are. Think about it, if you were having sex in front of 30 people 8 - 10 hours a day, you would not stay hard for long. On the set they have persons known as "fluffers" whose job it is is to either get or keep the actor hard between takes. I will leave the details of the act up to your imagination.
Please do yourself and your bf a favor and do not compare him to a porn star, these are highly trained professionals, where as your bf is just your average guy.
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