For context I am 19 M and my girlfriend is 25 F.
Reason I won:
Something my girlfriend does somewhat frequently since we started living together is masturbate in bed in the morning before I wake up. I’m not sure how frequently since I am usually asleep but I suspect she does this often since I’m woken up to the distinct sound of movements of it sometimes. I’ve also caught her doing this before but I usually don’t say anything. This is actually something that stresses me out a bit for some reason but that seems like a different discussion.
So today I was pretty sure I woke up to her playing with herself but she can tell when I wake up because I suppose my breathing changes. Today, as I sometimes do in this scenario, I pretended to still be asleep to see if she would go back to it. I’m not 100% certain she did but I’m pretty confident I could hear her.
Eventually she got up to go to the bathroom (I’m pretty sure she finishes there sometimes) to which I stirred a bit and revealed I was waking up. She said she was going pee but I suspected otherwise. When she left I created a win/win scenario for myself.