Bedroom advice

Martina
Okay ladies I need some help. So me and my fiance have been together for about a year and a half. He has brought up to me the idea of having a three some and I am totally not comfortable with that for many reasons. He accepted that I'm not comfortable with that but I can tell that he's getting a little bored with our bedroom routine. What are some things we could do to spice it up and change it up in the bedroom?