I feel like I'm getting too comfortable with this girl and it might be killing attraction.

I get the sex however I want it and whenever I want so recently I've been texting her more, spending a lot more time with her etc etc. I feel like this behaviour might kill attraction if I get too comfortable with her.

Is it a problem to start spending a lot more time with her and whatnot. Its gotten to the point where in my daily freetime I'd rather just go and fuck her instead of chilling at home.

As long as I'm still getting what I want is it okay to act this way and then just cut back once she starts trying to reduce sex or push for LTR. Or should I cut back on my time with her now?