Fun during video call

Having some fun with wife during a video call from sister

This is my first time ever writing anything like this. Don’t judge to hard on the writing

Sunday afternoon my wife and I were sitting I the recliner catching up on Nashville 911. As we are watching the tv show I get a video call from my sister. We pause the show to chat with her. We are just catching up on the latest news. She was doing the dishes while chatting with us.
She was wearing a pair of baggy sweatpants and I small gray crop tank top. Every time she would reach to put something away her shirt would ride up. Wife and I just played it off as if it was normal. We would look at each other and just smile. My wife then started to rub my cock through my shorts. I looked over at her and gave her a what the hell are you doing look. She looks up and gives me a devilish smiles and puts her finger to her keeps to tell me to shh she then puts her hand down my shorts and grabs my cock. I jump at first because I had no idea she was going to do this. we keep the conversation going with my sister as she strokes my cock. I think to my self if my sister only knew what was going on? On this side of the video she would probably freak out. I am trying to keep my cool while talking to her. But it’s not working my cock feels like it’s about to explode. Finally I end up cuming all over my wife’s hand. What happens next took me by surprise. My wife pulls her hand coverd in my cum and licks it off her fingers while in complete view of my sister. At this point I am so horny and tell my sister that we have to go.
Once we hang up the video I look at my wife and she says well that was so fucking hot. I can tell you definitely enjoy it. She’s ask me if I was looking more at her or my sister while this was going on. I tell her I was looking at both. She says how sexy it was doing that while I was looking at my sister. Best part she had no clue.
It was such a huge adrenaline rush having her stroke me while we were on the video with my sister.
I hope we can try and push it further to see what my wife will do next time my sister calls.