That's her reaction. Not a meter. But I understand what your saying.
She does sorta have an excitement meter, which is the omega symbol on her lower abdomen, as it fills in like a meter until she orgasms, then emptying/resetting.
yep, but that's her orgasm meter. the actual arousal meter is her face. and honestly i love it :3
Oh, I though that just constantly cycled. I didn't realize it was more then decoration