M/F in there thirties in Maryland

So I've been really wanting to experience DP or DVP with my partner. When our relationship just started she said she was poly and I was fine with it didn't phase me, but as the relationship advanced we became "mono" we still go to events/clubs but we are more into Voyeurisms/Exhibitionism. Recently I've been having the urge to ask my partner if she would be down with DP and DVP. We talked about DP before and she said it would be really hot, but only wants me. When we go to event/clubs we'll bring a dildo so we can simulate DP and DVP and it feels amazing. I feel like If I asked her she would be fine with it, but just a little hesitant because I wouldn't want her to feel like I want us to become poly, I still wanna be "mono" just got this urge. Seeing her enjoy herself makes me so turned on.