I need some advice

So I'm 21 and I'm married. But I've struggled with my sexuality since I was about 12. And my husband knows this. He has offered several times for me to experiment with a woman. And I've tried telling myself it doesn't matter now. I'm married. Just be straight. But it doesn't feel that simple. I don't know if what I feel is just looking at another woman and saying she's attractive, or actually being physically attracted to women. I'm not emotionally attracted to women, that's something important to note. I know for a fact that I could never be in a relationship with a woman. And I'm not doubting my marriage at all either. My husband is for sure the one person I want to spend my life with. This is just me trying to figure something out about myself. So, should I take my husband's offer and experiment with a woman (it would likely just be over the clothes stuff as I am very self conscious) or should I just keep pushing on that I doesn't matter any more?