A few questions I need advice – interracial sex story

I just began talking to one of the guys I set up to fuck my gf a few years back. I asked him to send me a pic of his dick so I could see what my g/f had shoved in her. OMG my g/f has said he was thick but she totally played down how thick he was. I literally have never seen a cock this thick, not in real life or on the internet. I am trying to set it so she fucks him again, but thusfar she doesn’t want to do it with anyone else again. Last night we talked about it after I showed her the pic and she began to remember how thick he is. She didn’t say it explicitly but I know she was turned on and only said that she would consider it but that she didn’t need that right now in her life. She also found out that he fucked two of her friends. We discoverd him because of her best friend who was dating him at the time. They had a long distance relationship and had not had sex yet. He sent her a pic of his cock and all she could talk about was how huge he was. After a long time I convinced her to fuck him. I found out yesterday that he pretty much fucked every one of my g/f former best friends’ friends. I think this made her feel better about doing it due to the fact that he is not really attractive but amazing in bed. Has anyone been in a similar situation where there g/f seemed to want to but not really? Has anyone had a g/f who was turned off by the whole thing because she felt forced by them or the bull? she talked to him today after I already posted the beginning on another site and she seems to be somewhat into it but I am not sure. I could really use some advice from someone who has had this happen. I am totally confused on how to handle it. She wants his cock I am almost positive but I have no idea how to handle it so she feels more comfortable.

this involves bi-cuckolding

What do you think, as the husband, about doing things sexually to the Bull? My g/f just started talking to a guy she fucked once two years ago and although she is apprehensive about doing it again she is expressing some intrest. I asked the original question because the guy is bi sexual and want’s to fool around with both of us. I don’t think there is anything wrong with gay sex or bi sex so I am not one of those guys that will deny being gay or condemn someone else for doing it. The strange part is I really have no desire to do those things normally. It only turns me on when my g/f is involved and she watches it happen. I think it might be that it is a form of humiliation due to them both knowing I don’t want to do it normally but would do it in that situation. The other problem comes in the act itself, this guy’s cock is long at eight inches but he is very very thick. He made one of my gf bleed after the first time he fucked her and she was nowhere near a virgin. If it does come to him totally dominating the situation and I end up doing something I mentioned above it is going to rip me apart. I have read post on here before about men who are used by the bull and I was wondering how it went the first time? Did you regret it or did you like that it happened? I know alot of cuckolds prep the guy before and clean the guy after but how many are forced into this type of situation? I have read many posts where the guy does this but it is usually that he has bi feelings outside of this lifestyle.