In the video, a person interrupts someone watching a new trend online. The trend involves being in underwear and sticking a hand down pants. The person is convinced to join in, and they complete the challenge together. The first part is done, but then the person reveals there’s a second part. The second part involves standing up and getting closer to each other. The video ends with them preparing to continue the challenge. The interaction is light-hearted and playful, with a focus on the trend’s silliness and fun.