YO CURIOUS NEED ANSWERS!

My boyfriend came a minute or less during sex with 5 of his previous exs.. but all of them werent tight for him considering he had a really small penis. But after he was single for a year, he got his dick done. When we met.. i lost his virginity to him (I WAS A VIRGIN I WAS OBVIOUSLY SUPER TIGHT) but he came a lot longer with me and felt MORE with me than his previous experiences before who werent tight. How is this possible?