Russian girl cheats on her friend, and he looks at her and jerks off

In the West, cuckold relationships have long surpassed the usual. Maybe thats why a Russian couple decided to become interested in such a format, who invited a family friend to visit, so that he would tear his wife in front of her husband, who only fap on such a provocation without further ado. Interestingly, the couple will go further along the path of increasing the time of intercourse or the number of sexual partners ?!