I was standing outside my house talking to my girlfriend on the phone and telling her how beautiful the night was and how clear the sky was. I first saw a light that looked like a plane in the distance. I live under the flight pass of airplanes coming to Tampa so i thought it was a plane. Then as i was looking at the stars and telling my girlfriend that i thought i have found a constellation on the sky but wasn't sure which it was, i started drifting my sight to the right, and then i saw it, there was a boomerang/arch looking white something on the sky. Also at first i thought it was a cloud, but it was moving extremely fast in the sky. At this point i became speechless, for a good 5 seconds, then i tried to describe what was happening to my girlfriend and couldn't express it. Then i realized that the first light that i saw was actually following the object. It look to me like an arch looking cloud was being pushed really fast by an invisible object and the cloud was not dissipating or disappearing. it was just going extremely fast. The light that i saw was at least 1/4 to 1/2 a mile behind it. Then the bigger one, the arch looking one, turned to the south, and so did the light following it, at simple sight i would say they were 3 or 4 miles away, and within seconds they dissipated in the sky. Both of them. I was clueless on what it was. I was like, wait and tried to make sense out of it, and briefly went back to explain it to my girlfriend, but i couldn't really put it into words over the phone, so i told her i would tell her today.It was about 11 PM, in Holiday Fl 34690