When Saul first came on he said he was straight and just wanted to experiment. Now he can suck the wind out of a tornado. Vincent also as we see couldn't wait to suck Saul's dick and I know would have loved if he fucked him. This wasn't the first time plumber Vincent has had sex with a dude.
I think Vito could be converted. He's on his way, sucked his first cock. And liked it. But who cut Vito? What a crime! Just look - he would have had a nice long foreskin, 100% hooded at least and probably even longer. Ummmmm. Cutting boys' foreskins has to stop.