Interested in cuckolding and dp

Hi Im 24 and my wife is 23 I cant get the idea out of my head of her sleeping with other men and Im watching or me and another man take her at once. we have both hinted at the idea of DP but she said she could never ... with another man because she loves me to much. I love her more than anything to I just want to take our sex life to the next level.

Any suggestions? Or stories that could help?