Is it normal that i like to cum on a girl while she's sleeping ?

Whale that's shellfish

If she's alright with it...
However I kinda agree with the comments above :/

Uh, that's sexual assault.

This kinda stuff personally turns me on. I always tell my boyfriend he can do whatever he wants to me while I sleep. I challenge him by telling him that if I wake up, he has to stop. He loves it. I do too. I masturbate to the thoughts afterwards. There is nothing wrong with it

This reminds me of a time I was sleeping and my boyfriend snuck a finger up my vag. I was like half asleep. In the morning he asked if I like that and I was like "Liked what? What did you do '>.>" lol Fun times.. I'm not very helpful sometimes..

She'd have to be pretty out of it not to wake up...

Not 'normal' but understandable.

If she says it's okay nothing wrong with it.