JUANDELACRUZ submitted:                        

Another piece of official art featuring Lady Belial, Demon King (sic) of Vainglory, from HobbyBase’s anime|manga|figure franchise Seven Deadly Sins. This time, Belial is actually wearing clothes and is apparently now a teacher, though with the way she’s dressed, her subject should reasonably only be something related to sex

I assume this is not a biology lesson on anatomy.