According to reports, the wedding took place in the province of Fujian in south-eastern China last Thursday.
One of the clips shows the couple walking down the aisle and then standing on a stage at their wedding banquet.
Then, seconds later, an X-rated video starts playing from the projector, before the groom tells the bride: “You thought I didn’t know?”
Two other videos said to be of the bride and her brother-in-law were also shown on the projector.
Mail Online reported that the bride then threw the bouquet at the groom obviously out of both shame and shock before the guests separated them.
Some Chinese media reported that the couple had been in a relationship for two years and got engaged six months ago but the groom thought it prudent to install a security camera in their future home during a renovation project, following suspicion of infidelity by his fiancée.
The bride, according to an influential Chinese blogger, cheated on the man after suffering from domestic violence at his hands.
Meanwhile, other reports suggest that the incident was a staged marketing strategy.
Watch the videos below: