There is always a fair chance that if another man gets into your mrs he’s gonna get further inside her than you will ever get making him the man that has been into her most intimate places.
That's exactly what I'm afraid of. She said that she cannot cum by penetration only, without any stimulation (rubbing clit etc). She said that it's not because of me, but I fear that she might cum with penetration only, if the dick of her sexual partner is big enough. She has also said that the thickness if the penis is the thing for her...
I once asked if I had the biggest cock that my wife has had sex with. Unfortunately she said no, because some black guy from her past had bigger. I was devastated by the fact and I just can't stop thinking that the sex with those two might've been like something that we see in this video.