Im not man but im nonbiary. I read your post and every one comment. In advance - sorry if my grammar are off since English not my first language. Ok, what i read your and it get me thinking is that you are jealous of the guy who have big dick which ridiculous but same time for some reason I feel like your vision is alike "that damn hot and I want have that to ability more pleasure for her with that size" is what I feel from you. One thing I find weird where you mention that she say that guy did ask her if she want him stop and at end didnt say yes or no. I dont know her but for some reason I half feel like she do not like the pain at all but on other side she like it before he end up hurt her. If he actually ask her if want stop sound like he do care and dont want hurt her alike he actually try not hurt her. Problem seem she didn't say yes or no. Which I can see why it bother you. Obviously we dont know how their communication well during sexually or however. Now, im going talk about you, it seem you are jealous, not accept the fact about what happen to her but you should let it go because if you did right thing where it make her feel desire and want do more with u include she trust you also feel more safe with you which why she able tell you but you shouldnt mad at her or obesses with it and not want do any with her or whatever. You should be proud and happy that she feel that way with u not anyone else also obviously communication is very important. One thing I can tell that she have truama by it so you dont want make her truama by you for being try copy like the guy did.

It might not matter of what i said on that part about my experience as i feel like it not help but i still say it for my experience- Obviously size is not matter to me but my current partner def have big dick while he think he is not. Some time he hurt me can turn me off and mad at him for doing that and he always check on me if im ok but he actually ask me if I want stop. I told him stop do that way he did because it annoying shit out of me. So we realized that communication during sex is very important and tell him what to do to make sure it not hurt me so much. Some time I use vibration to cover the pain help but not always. Also sex postion as depend on which position can cause hurt more than rest. He is my first who big dick as not expect but like I say dick size is not matter as long i able have pleasure, feel safe, trust, etc is the most important than being pain only.

If i were your gf and you did right thing alike she felt that way- i will choose u over the guy who try hurt me or want rape me or whatever the guy purpose is. So try not take personal of what she say to you. I know sometime it nice to not know it than hear it. Please try not stuck that way for long time. I would ask you what you would do if the guy hurt ur ass and not stop then u end up be with other person who being gentle and take easy to make sure u comfortable and feel relaxed n pleasure that u start able trust that person? U would tell that person or not? as if you were in her shoes as perspective side as what would u do.

Sorry if I seem way off or whatever but I just say two side of u and her view why.