Talk to your wife, first, who knows you could be cleaning up after two women, your wife may like watching you clean up, that is if she is old enough. Either way no sense in risking your relationship with your wife!
Go for it! She's hot in the ass and wants to fuck. Don't miss out on the chance of a lifetime. If you do, years from now you'll be jerking off wishing you had banged her tight little pussy when you had the chance. After all you've already crossed the line! Fuck her hard so she knows what it fells like to get banged good! Drop me a line and let me know what you decided. Please!