The wife is not against group sex with her husband's young mistress

My charming little wife has recently become addicted to the casino. It is very good that she does not play for large sums, but mostly has fun and fucks with the local people. And today she returns home for a couple with a new friend whom she met in a casino. The girl is really good, and almost from the first moments of todays visit, we are engaged in group sex threesome. But if she brought one of the men, there would be more problems!