Normally Bel might just quickly strip and get back to what he was doing, but the way Barcus is looking at him means he wants to give his lover a bit of a show. (If he'd realized this was how he'd be spending his night, he would have worn something fancier as undergarments, but hopefully there will be other nights.)

So Bel stands up, facing Barcus. He undoes his belt, loosens his trousers, then eases them down his legs. He'd already taken off his shoes before getting on the bed. He does set his pants aside before doing the same with his undergarments, making it clear that Bel is already erect after all of this. Still, he does offer a wry grin as he turns so Barcus can also see his bare ass.

(It should be noted that Bel is still wearing the medallion that Barcus has made him that winter, as well as a sea-glass necklace from Finnick. At this point, it's all he's wearing.)

He does sit down after that in the same position. "Much better. What do you think?"