A mobile kiss messenger, called Kissenger, hopes to help couples overcome problems inherent in long-distance relationships. Researchers from the Imagineering Lab at City University London have made it possible to replicate kisses and send them to one's lover far away. /CFP Photo

Paired with a messaging app installed on a smartphone, the device can sense a kiss and transmit realistic kissing sensations to the recipient, and the user will also feel the person on the other end kissing them back. /CFP Photo

The two users need to insert their smartphone into the plastic Kissenger device and press their lips the silicone pad, which contains force sensors. The Kissenger measures pressure on different parts of the sender’s lips to mimic that kiss on the recipient’s Kissenger. /CFP Photo