Long time lurker here.

My wife and I are new to the lifestyle, and we had our second encounter recently. This second time was significantly a better experience for both of us. Even though the other couple was great my wife and I still aren’t too fond of the idea of her playing with another male. That being said she’s told me with both encounters that she finds it super hot watching me with another woman, and to be fair I enjoyed her watching me as well. The following morning, my wife and I were intimate together and she told me she was imagining me with the woman from the night prior as I was making love to her, which causes her to cum very quickly. Afterwards, my wife feels guilt and shame on her fantasies and kinks because she is a strong Christian woman. I want to reassure her that she is fine and to not feel shame of her fantasies. Any advice?