Your wife climbs up towards the head of the bed.
"I've been dreaming about this for weeks and always wake up panting. I've had to quietly finger myself to orgasm as you lay next to me snoring. I wouldn't want to wake you up, because then you'd be all hot and bothered and needy. And when I finish up and roll over your tiny dicklet is the last thing I want to deal with."
She knows exactly how her words are affecting you, as evident by her evil grin.
"But maybe... that's exactly what you do want? Would you like it if I just fucked myself silly, every night, while you lay there unused and unwanted... your balls becoming bluer by the day? Sometimes I cum, just knowing your peeny is hard and frustrated... "
She sighs. "But not tonight. Tonight I have 'bigger' plans", she says while holding up her dildo.
"Keep stroking..."