終生伴侶

终 = 冬 + 纟 : Julian Giant Squid (zhu) and the silk worm (纟) are eating udon noodles (冬) in front of the engine ((e)ng1). After a while into the dish they accidently both suck on one end (终) of the same noodle and eventually kiss.

生 = 牛 + 一 : Mnemonic symbol: a cradle.

Sherlock Holmes (sh) comforts a crying baby bull (牛) in a cradle (生) in front of the engine ((e)ng1) and plays him a tune on a flute (一).

伴 = 亻 + 半 : For his latest mischief, Beelzebub (b) organized it so that Rosa Luxemburg (亻) meets King Solomon (半) in the anthill's bathroom (an4). Soon they'll become partners (伴) and Beelzebub will continue with the next step in his plan.