Baby steps?

My wife grew up in a very Christian household. I'm the only guys she's ever had PIV sex with, though she has done oral with others.

I've shared with her that the thought of her with another guy is very hot. She was very resistant to even discussing it at first, but has begun to open up to fantasizing about it while we have sex.

Recently, she's begun to wear more and more revealing clothing. Last night, we went out and she wore this with shorts. She has smaller boobs, but you could see her nipples and the outline. She caught more than a few glances.

We had sex when we came home and she said she sometimes wishes she'd slept with other guys in her college days (we started dating a few months after we both graduated).

Anyone who's active in the lifestyle, does this seem like maybe she's moving in the direction of actually being open to hotwifing? Either way, it was great sex.