So I'm a comfortable exploring and my friend who is straight is comfortable not exploring but says he is strictly into women BUT we are both nudist

My friend who is strictly straight that haven't had sex for 10 years and having trouble finding a partner. By saying this, he get turn on easily just by the blow of the wind. When he does get erections it last for a long time that he starts to pre-cum

Of course, I ignore it. The concern I have is going to nude beach with him where there are actually women that are naked. I warned him that he can't have erections like he gets when we hang out and he thinks its normal to walk around with an erections.

He did admit he might ejaculate if he does get turn on and lay on his stomach so the ladies won't get offended. He thinks its normal to do this and fine doing it in front of anyone.

I having a hard time believing he is 100% straight even though he says he is..I believe he is ashamed of it