Sister in law

I’m really wanting to fuck my sister in law. I’ve been sniffing her panties for years but I wan more now. I think she does too. We’ve been flirting a lot more and she’s almost flashed her tits to me. She has shown me pics she’s sent to her husband. Not anything revealing but the ones right before that. He knows about it so it could be fun with both. She showed me one of her ass in panties from the side. I don’t think she knows how much I loved that pic. She sent me and her husband one one her legs while she was in bed. I hope it goes further. Enough where I at least see her naked.