Recently we talked about our kinks and my gf brought up the idea of having a threesome with another man. She never had another cock than mine wich is about 5 inch. I finally agreed so she searched on dating apps for someone. We finally setup a date at the hotel and the guy she found arrived. He was tall and skinny. My gf is usually shy, but at this moment it changed. She started to get closer to him and finally pulled up his pants revealing a 8 inch cock. I was completely shocked. I said damn that's a massive one, and she looked at me and smiled while putting the tip in her mouth. I went to join and she said watch and enjoy the show. She then pushed the guy on the bed and began sucking his massive dick while i was too shocked to do something. i felt like my cute gf was a slut for him. She took her cellphone , gave it to him and he recorded most of the experience. She stopped sucking his cock and got on her knees to be facing me and guess what happened next. He starting pumping his huge cock deeply into her. she was making sounds i never heard from her. I couldnt believe my tight gf was taking all this cock. She was really enjoying this. They fucked for about 45 minutes, multiple positions. After all that the man said he was about to cum. She droped on her knees and said cum all over my face. I never did that to her before. So he came all over her face and seemed to enjoy it a lot. When he was done, the guy put his clothes back and left. She was waiting for me in the bed with the face full of cum and asked me to cum inside her pussy. Guess what happened, i started to fuck her but couldnt feel her at all, neither did she felt me. She was finding it funny but i wasnt. It was weird to have sex with her feeling her soaking wet, used pussy , from another man.