Me (28M) and my GF (24F)’ [MFM] threesome with my old roommate turned me into a cuckold

Me (28M) and my gf (24f) second [MFM]threesome turns into cuckolding with old roommate

Its quiet a long story but 100% real and worth the read if you want to know about a couple’s intro into this. So my GF and I are a very kinky and sex positive people. Ever since we started seeing each other we would be very open about sex, we’d talk about what we liked and our fantasies. Lucky for me she was into most of the stuff I brought up. One thing I really enjoy is watching MFM videos, especially amateur couples.

For months we were doing a lot dirty talk when we were fucking or when she was sucking on my cock. Btw she is really addicted to my cock and she is an amazing BJ artist. This young thin blonde cutie with a great ass and big tits loves to give a good show.
Last summer at a concert I ran into my old roommate , let’s call him Eric. Not thinking much I invited him to get a drink with some friends and my gf after. The night is going well, we are having fun and getting quiet drunk , one thing led to another and we went to the bathrooms and did some ❄️. My gf was in a great mood and I decided to invite Eric with us to do some. While in the bathroom we are talking and I just out of the blue asked him what he was thinking of my gf. Eric said she was super hot, I then straight up told him to pull out his cock, which he did.