Could anyone help come up with a couple of titles please?

Well, I have a couple of ideas for some novels, but I'm terrible at coming up with titles.

————

"Lilian" and "Lydia" are two alien twins sent to destroy humanity because they were deemed useless and a waste of space that could be for more intelligent organisms. Aliens are sent out to other parts of the world as well, working undercover as several different kinds of people. Lilian and Lydia are sent to investigate the life of an American high school students. Eventually, they learn that humans aren't actually all that bad...and therefore have to convince their leader to spare humanity their lives.

————

Hillton High School's physical education teacher has always taken the students in his PE classes to the forest behind the school and allowed them to do whatever they please. Since there's nothing specific they have to be doing, three of the students'—beautiful, popular, athletic, kind Camellia; reserved, quiet, mature, also popular Castiel; and loud, obnoxious, idiotic Damien—relationships with each other—Camellia is crushing on Castiel and doesn't care for Damien, Castiel doesn't particularly like either one of the other two, and Damien is crushing on Camellia and doesn't quite mix with Damien—start up a little bit of a competition with each other. And from that, unexpected feelings between Damien and Castiel blossom, but how long will it take for one of them to confess?