In a new viral video that’s surfaced online, a Thai model by the name of Wichuda Cheychom has shown that she has found a trick to identify fake breasts.

Cheychom uses the light from her cellphone and places them to the side of her breasts. The video shows that in darkness, the fake boobs light up because of the light from the cellphones. Even though the video by Shocking Videos has gone viral, there is still no proof that all fake breasts glow in the dark in a similar way.