夏天开车时，挡风玻璃上总是粘着很多交配中的恩爱虫。

In summer, the car windshield often gets covered with mating ___lovebugs.

我妹妹总是粘着我，所以我给她起了个绰号叫“小甜心”。

My sister is always clinging to me, so I call her my ___lovebug.