I'm in a MFF poly and we all live together. I'm in my late 20s while my gf and bf are in their early 30s. Recently the topic of having a child have been floating around a bit, I can see why since their both a bit older than me. I personally just isn't quite there yet, recent new promotion, etc., my gf had gone off birth control. We're all very sexually open and like to try new kinks. I read that having sex while trying to get pregnant can make it boring and mundane, that's why I brought up breeding kink to my gf and bf. Aside from lots of dirty talks, making it more spontaneous, what are some of the things I can help them to make it more fun?