Thanks all.
Just a clarification. I'm not wanting to tell her so I can cum in her hair or at least play with it. I just want her to know I have this. It's s pretty big secret that I don't want to keep for her anymore.
When it comes to sex she's not very outgoing and into stuff outside regular sex. I'm ok with that.
I've decided to wait a bit because we had a rough couple of weeks. Or even months. Her pregnancy was a though one and our son spend 3 weeks in the hospital. So for now she has other things to worry about.