"NO!" Amber says as she grabs your cock and squeezes it in an iron tight death grip. It works, your cock throbs in her hand, but the cum is successfully blocked and goes back inside you.
"Oh, the squeeze technique," you observe, "I've tried this before."
"Yeah, you have to catch it at the right time. No breathe. Breathe deep and slow, until the feelings passes." You do as she commands.