It doesn't

You have no idea what to say. Clearly your mother notices that as she goes to answer the question herself. She leans over grabbing onto the waistbands of your pants, she quickly yanks them down, leaving your soft penis fully exposed.

"Hmm, interesting." She says while examining your crotch.

"Mom! What the hell?" You shout. You can't believe how she's acting.

"It looks like my body doesn't turn you on." She says. You hear a tinge of pleasant surprise in her voice.

"Well yeah! You're my mom!" You say as you quickly pull your pants back up.

"But you were hard last night, when you were watching me." She says. "Unless it wasn't me that you were watching."

"What are you even talking about?" You ask as your confusion is quickly becoming frustration.

"Oh, you don't need to get all flustered." She says. "We're both adults here, we can have an adult conversation about sex."

Still unsure of what's going on, you stand still, not reacting.

"Tell me, when you think about what you saw last night, how do you picture it?" She asks

"I haven't been thinking about it, I don't want to think about it." You say.

"Oh don't be a prude." She says teasingly "When you were watching me being fucked last night, and all your blood was rushing to your cock, what were you thinking about? Were you imagining that was your cock pounding its way inside of me?"

"No!" You shout "Of course not."

"Oh?" She says with a grin. "Were you thinking about the man? Thinking about his strong hands groping my body as his cock filled me? Thinking about how good it must have felt to let him be in control? What it's like to be fucked?

Her strange and shocking words sink into you. You're dumfounded as you listen but suddenly horrified as you feel your pants getting tighter.

You do your best to stifle a gasp as you become aware of your hardening cock. There's no way it's because of what she's saying, is there?

All you know is you can't let your mother notice.