Kissing With Chemistry

These 2 Chemists are very much attracted to each other, all they want to do is lock lips for a little while, the only thing stopping them is the other people in the lab. If they spot you 2 kissing you will lose one red test tube. If you lose all three test tubes its game over and you will need to try again. Do you think you have what it takes to get these two love birds off to a good start in their relationship?