AITA for wanting a rematch after they said they want to cook me?

Me (30M) and my girlfriend (27F) usually do gaming challanges and the loser has to serve the other.

A few days ago she asked if a friend of hers (32F) could join in on our game. At firs I wasn't sure because I didn't know her well, but she showed me a few pics and once I saw that she's sporting a thick cock I decided to go along with it.

My gf was incredibly happy and today we had our challange and at the end her friend won while I was last. All is well and I have been a good cock warmer for a couple of hours: her cock feels amazing in my ass and my gf loves seeing me getting pounded so it's all good and we were having all a great time.

But at a certain point, while balls deep into me, she say to my gf that I look like I would be delicious oven roasted and after a moment my gf's eye lit up and she excitedly agreed: now they want to cook me because I had lost the game.

It's true that as they said that I came, but I think that the possibility of being cooked should have been discussed before and I am refusing to go along without at least a rematch

They both told me that they don't see the problem, that if it was them they would have agreed and that I'm being unreasonalbe. The load I shot as they said that isn't helping the case either.
At the end we decided to ask for other opinions while I keep serving them.

So AITA for wanting a rematch before getting roasted?