[MF] Couple experience their first experience with a third person involved

A little about us, we are both hispanic, in our mid 20’s, average sized, and have been exploring kinks involving group play. She’s petite, very light skinned (can pass for white) with short red hair, and I’m a darker brown with really long, black, curly hair; sometimes we get confused as an interracial native/white couple. For a long while, my wife and I have been wanting to have a third person involved to play with, just as a one night thing. Some months ago, we decided to post inquiries on a local hookup sub here on Reddit, but had no luck; most guys didn’t do it for us, and the ones that did flaked after we settled on a date. The same day we agreed on meeting someone, I found a redditor looking specifically for blowjob, so I decided to send him a message saying my wife was looking to do that for someone too. He was a handsome white guy, yonger than us by about 3-4 years, and pretty fit. A few things to mention about this: her period started just the night before, and the guy was looking for a female only.