Yes, he believes you

"I guess I have been weird lately. You've never given me a reason to doubt you before so I trust you," John says thoughtfully.

Jen looks disappointed, but quickly perks up.

"Oh well. I'm still gonna fuck you. It's just now you'll be tied up. Let's get that dick hard," Jen says excitedly.

"Nothing you could do would ever-" John is suddenly silenced by Jen rubbing his pecs while whispering in his ear. You can't hear what she says but his cock shoots straight up.

"It was a noble effort, John," you say ironically. You've always used humor to cope with intense situations. Apparently this scenario is no exception.

"Mmm, where should I begin?" Jen mocks.