Maybe she just wants to please you so is down to try it to do so as she’s more open sexually than you realized. My wife agreed to do it finally more to please me than wanting it and has told me now if i would have talked to her more about it when she said no for a few years instead of pouting and discussed why i wanted it she would have done it for me much earlier than she ended up doing it to please me. Once she found out i was serious, really wanted this, could handle her being in an open sexual relationship all was good and lots of cocks where in her pussy with me watching from then on. She tells me now, if i had been open and discussed my needs with her when we dated, even before we were married, she would have fucked black guys for me so long as we discussed it and it wouldn’t change anything in our relationship….she says she loves me so much she would do anything to please me as long as we discussed it and had agreements and we wouldn’t let it affect us. I’ve watcher her lick pussy too, she‘s really not into it but she’ll do it with a friend of her’s that comes over every now and then to please me….of course, it’s usually with a bull or two sitting with me watching them 69 for a while before they get involved but still, it’s not her thing but she does it to please me. Maybe your gf is kinda the same, a free spirit who gets sex is sex, making love is something totally different and she’s down to please your desires so long as you both agree of what comes after the deed goes down. My wife looked me in the eyes and we discussed her fucking other men very seriously because she was adamant about once she does this, and another guy fucks her and i watch, we can’t go back and undo that and she didn’t want me to think differently of her in a negative way….that was the one hurdle we discussed frequently before she spread her legs and started taking cocks. Our relationship while always strong, has never been better and our only regret is not starting this lifestyle like you two, young and dating and just accepting we both love it, want it, enjoying it and living it a full lifetime instead of waiting 15 years into our marriage to get it going