my g[f] and her b[f] made [m]e explode in my pants [No sex]

So this happend a while ago and we still bring it up sometimes. My gf has a fantasy of me to bound her and fuck other girl infront of her.

This said i will try to explain what happend
So my gf is good looking brunette with nice body and her friend is alo pretty nice with fit body but the thing that makes me turnd on is her personality.

We ware outside eating dinner and desided to go home to my and my gfs house, there we mixed some drinks and talked. Somehow the conversaation went in topic of porn and masturbation.
They wanted to look at my browsing history to convince them that i havent lookd at porn on my phone.
I agreed, if there was no history i wanted them to make out infront of me. And thats what happend.
I sat in middle and had my arms around them while they kissed.
This made me hard and they could see my dick through my tight jeans clearly, i did not notice until my gf told her friend “do you like what you see”
She was looking at my penis for long time and but did not answer. As they ware leaning on me i played with my gf ass and her friends as well.