A couple purported to be students chose to make love on the roof and were unfortunate enough to be secretly filmed from afar.
A footage that surfaced, and immediately went viral, on the Internet on Thursday shows the couple having intercourse on what is said to be an Internet café in Hanoi.
The girl is seen from behind, still in her white T-shirt.
The video was apparently filmed by a smartphone from a distance far enough to make the face and other identity of the two involved unclear to be seen.
The cameraman occasionally turned his device to film his friends behind, who were heard shouting and mocking the couple in the 52-second video seen by Tuoi Tre News.
The ‘audiences’ watched the two having sex with excitement, and gave some vulgar comments.
“Let us cheer loudly and applaud when they are done,” one of them said.
The cybercafé is said to be located on Dang Van Ngu Street in Dong Da District.
The couple have been criticized for blatantly doing what should be done in their private bedroom in front of the public.
Those who filmed the scene were also blasted, mostly because of their inappropriate comments.
It is unclear whether the couple had used methamphetamine before their sex on the roof session.
Last month a video showing a couple, apparently foreigners, having sex on a pavement in Hanoi also caused a stir among local netizens.
There are currently no regulations that ban or penalize the act of having sex in the public in Vietnamese law, according to local lawyers.