So give her a man-on-man sex show. Even if she just watches and doesn't participate, this can be a fun time for both of you. For you because it gives you an opportunity to explore a different kind of sex not only with your wife's blessing, but with her there watching. For her because she'll be able to see what a talented cocksucker her husband is.

Man, you are one lucky dude. Not only is your wife giving you permission to suck cocks, she is encouraging you to do it. Count your lucky stars.