First Time Advice

Hello everyone! So I'm brand new to this community. The reamister that I'm here is because I was curious if there were other people out there that shared the same fantasies as myself or if I was just different. I am 29 years old as is my wife. We had been dating for 10 years with a couple short "breaks" in there and now we have been married for about 6 months. Anyway, I've had this fantasy for some time and I really want her to relax with someone else. She has only had sex with one other guy which happened when we broke up. Apparently this other guy was very large. I know this for two reamisters: she told me, and when we did have sex again, she felt very loose. Nothing was more arousing that having sex with her and feeling how loose she now was.

Anyway, we have had a couple takes conversations and she has not ruled it out. I'm just wondering what the next step should be. How can we take this to the next level? Please give me any advice that you might have.

Thanks