Black Friday handjob with my neice.

I took my neice(by marriage) black fri shopping this past fri. We have had sex several times before and had been fucking around all morning. We were waiting in line to pick up some video games that were on sale when she reached down pulled my cock out and started jacking me off. I was covered by her coat so no knew or saw but we were in a crowd of people crammed in an area elbow to elbow. I came so fucking hard. Some of it shot on the woman in front of us which made me cum even more, then she pulled her hand out and licked it clean. My wife isn't suspicious at all but we are getting braver as we go. We have started kissing in public places and now this!