Well, there’s no harm in asking! You don’t have to stop the sex though, just you don’t get to cum. Personally I love leaving hubby in his cage while we have sex so if she’s interested then you should get yourselves a strap on and maybe even a big dildo to go with it so it’s a different experience for her. I know I love it! My hubby, desperate and horny and focused on me while I get the ultimate cock to enjoy and make me cum. Definitely win win! lol