Tell her, she only wants to help.

'Mom, it's...' he began, and she put a hand on his back, rubbing between his shoulders. 'It's, well, embarrassing.'

'Embarrassing?' she repeated, almost offended. 'Sweetheart, I'm your mom. You don't ever have to be embarrassed around me. Tell me, and I can help.'

John swallowed and closed his eyes. 'It's... down there.' He nodded toward the area, avoiding eye contact with his mother, and continued. 'It hurts. I don't know why, but every time I move, it just...' he trailed off.

'Okay, okay,' she replied after a few stunned moments, and continued to rub his back. 'Look, I know it's probably hard to talk about with me. Being a woman, and your mom, and all. But you don't have to be embarrassed. And I'm glad you came to me.' John nodded and tried to smile, watching his mother think. 'Now, look, back when your father was alive, he had problems... down there, too. He used to tell me about it, and I'd do what I could to help. Obviously, the situation was a little different,' she said, a gorgeous smile lighting up her face. He was relieved that she never took anything too seriously, unless she had to. 'So, the first question I'll ask you is, is it possible you might have... caught something?'

John widened his eyes at his mother.