Is is normal that i want a big uncircumcised man to cuckold me?

Ok, so I am a bisexual heteromantic male with a fetish for big uncircumcised dicks. By heteromantic I mean that I really only love women, even though I like to hook up with men. I am only aroused by a big, erect, uncircumcised penis. I'm average myself so I can't complain. I am circumcised and I think it's a ripoff and violation of basic human rights. I also got into being cuckolded during my last relationship. I shared my girlfriend with my best friend because I could tell they had chemistry. He is bigger than me and it was really hot to watch them do it. Now, after having broken up with her, I find myself fantasizing about the guys she is fucking now. Nothing makes me orgasm faster than looking at a picture of a nice uncut dick and imagining her taking it out of a guy's pants and really getting off on it. I think I want to let this fetish develop instead of repressing it and find another girlfriend who I can share. I know cuckolding is becoming mainstream, and it makes sense that as a bisexual man I'm really aroused by it, but I'm wondering if it is at all normal to be aroused by my girlfriend experiencing an intact penis as nature intended it (something I can't offer her)?