So, let me get this straight, your husband would never know that you were cheating on him? I mean, obviously cheaters don't want their partner to know. I find this ridiculous for someone in a serious, committed, monogamous relationship.
If your relationship is open, and you and your husband are okay having sex with others, then that's fine, I wouldn't have any problems with it.
As for your daughter, as long as your husband is fine with it and it doesn't present problems in your marriage, then it would be fine.
The only problem is if you have a monogamous relationship, really.