Replacement option?

Red Bull makes our heart race. Literary. It beats twice as fast. Twice as many beats in the second than it normally does. It also keeps us up at night and doesn’t let us sleep. Even makes our brain race.

Our lovers do the same to us. When we see them, our legs go numb, our hearts beat in the speed of light. Feels like they will jump out of our chest. Thinking of them keeps us up at nights.

Why can’t Red Bull replace lovers?