Irish wife gives you good advice. My advice is that nerves are part of it. Talk a lot prior to get some familiarity. Keep your husband involved so that you are all on the same page. Think about anything that would make him or you uncomfortable and relay that your 3rd. I find on a first time thing that maybe dinner before hand. That way its not just drinks. Nerves tend to make you ******* too much. When you have dinner then you can talk get a feel for each other and maybe a ******* or two. Dress for the occasion with sex in mind after. Dont get *******. What's the fun in that. Then take your time. Let them both seduce you and strip you. If your husband wants to be more of a voyeur keep eye contact with him occasionally. Take your time! Lots of foreplay and work up. Then enjoy. If your husband is involved there are all kinds of opportunity, you suck him, he fucks you while you suck, caressing your breasts and kissing you while you get eaten. It is an amazing experience to me the center of attention and just get serviced for a really long time. Enjoy yourself. If you have chemistry then stay with the same guy a few times until you have a good idea then you can venture out.