Nigeria, Feb. 10 -- If you pass through the streets of Ajiwe in Ajah town, Lagos, during the day, you'll notice a lot: sprawling residential estates lining the road, mom-and-pop shops, a few POS operators, children playing roadside games, and the bustling "God is Good" motor park.

A more observant passerby, however, will spot a dingy, beige-coloured, three-story motel called "Travellers Lodge" beside the park. During the day, it's a casual spot to watch football, grab a drink at the local bar, or buy a pack of Indomie. But as night falls, the motel becomes more than a safe haven for a weary traveller. It becomes a darker identity: a haven for sex work. It's a common sight to see young women, some teenagers, with revealing mini-skirts and...