Caught being fukd by a bbc and made gf crave it 2

My gf caught me cheating, she found a memory card and on that memory card was me being fukd by a black bull im bi and wud be as happy with a dildo so my gf obviously broke up wid me there were tears and i owned up and sed i like being submissive she actually came bk to me i did sugarcoat my desires but confessed to the main bits so months down the line and weve argued and fighted and we wud make up.
im a very confident respected person i wud say i demand respect so it was a bombshell she also saw me wearing pantys and being very passive .
weve always had a kinky sex life as me being the creative input our sex life became sporadic and i start noticing her pussy was looser and we do have a vibrator and it slightly bigger than me but not very thick and she starts wanting anal and wants the vibrator and my cock in her pussyvat the same time i comply as a good cuck shud id lick he pussy for aslong as i cud and she refuse to suck my dick. and even fukd me wid vibrator on occasion weve discussed her having a big cock and she will express her burning desire for a big dom alpha experience as i no lnger have her respect i am excited and accepting of my role but worried that when she does have a guy with a big cock fuck her and dominate her like i no longer can she will leave melife widout her is pointless she has expressed the need to be fukd hard were nt very close and when we have sex i loose erection very fast shegetswet and tells me stop as she cant feel it i have asked her to just tell me if she does have a bbc she says she hasnt but orgasms at the thought of a bbc and having to dp her pussy evrytime we fuck i believe im being given a taste of my own recipe i have fukd 100's of woman and men im a very sex ually orientated