Touching Yourself While He's Asleep

Sometimes after our last session of sex before bed I don't always cum. It's still loads of fun, but I'm left with a need. So I wait for him to fall asleep and I masturbate right next to him and it gives me such a rush. What would I do if he woke up and noticed? What if he's not actually asleep right now? Last night was mind blowing because he fell asleep with his hand rested on my inner thigh. I had to stay so still so I wouldn't wake him and I came so hard. I don't know if I've cum that hard in my whole life. I decided that if he woke up I would tell him I had a really good sex dream about him. Is this super-weird? Does anyone else do this?