A quick romantic kiss will burn about 2-3 calories, whereas French kiss (an openmouthed kiss with tongue contact) will obliterate more than 5 calories.

• 一个飞快的轻吻可以消耗2-3卡路里，而法式热吻（张开嘴的舌吻）则会消耗至少5卡路里的热量。