How do I comfort my boyfriendwho had a pee accident?

So he was driving and it was just me and him. We were in the middle of nowhere when he admitted he needed to pee badly. 30 minutes later and he absolutely couldn't hold it any longer. We had no bottles or anything. He told me he was going to pull the car over and just... go. So he pulls over, gets out, and looks around to make sure nobody was watching (nobody was even around) but before he could find a place to pee or at least walk away and have an accident, he couldn't hold it any longer and has an accident right there by the drivers seat of his car with me plainly in view. He was mortified. I felt terrible for him, especially because he soaked his pants and I cannot imagine how bad it hurt to hold it that long. He told me he is so super embarrassed. I don't want him to be embarrassed though. I understand accidents happen. What do I do?

How do I comfort my boyfriendwho had a pee accident?
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