Family Ties/Ask Timmy what he thinks of his mother.
"So tell me son," you say as casually as possible. "What do you think of your mom doing perverted things like these?"
Timmy opens his mouth but has a hard time responding. It seems like he's waiting to be grounded for the rest of his life. You give his cock a gentle squeeze through his pajama pants and slide him even further onto your lap.
"It's obvious that you like it," you add, tugging his cock briefly. "But what do you think of her?"
"I, uh, think she's really pretty."
"Is that so?" You respond, almost threateningly. Timmy drops his head and nods, but not far enough to prevent him from watching Stacy. "So you would probably like it if she wore a little less around the house, huh?"
Timmy looks up at you and smiles enthusiastically. "Yes sir!"
"Of course you would." You squeeze his cock again approvingly. "That's exactly what I wanted to hear."