The woman nodded as Lina undressed, kneeling down in front of her.  She took the belt and fastened it around Lina's waist, tight enough that it wouldn't easily slip off.  Lina noticed that it didn't have a usual keyhole, instead some kind of panel with a rune engraved in it.  "Your challenge today is to run through an obstacle course, as quickly as possible," she began to explain, taking the first toy and slowly pressing it against Lina's sex, forcing it in past her hymen once more.  Unusually, having her new virginity taken didn't hurt, but instead sent a wave of pleasure through her body.  "You will be pursued by a monster during this challenge, however.  You will have a head start, but if the monster catches you, you'll fail.  Along the way, there are switches that will close a door behind you, delaying the monster.  However, there are consequences for using them," she continued, pushing the first toy as deep as it would go before forcing the second, thankfully smaller, dildo against Lina's rear.  Finally, after several moments, both toys were seated inside the elf, and locked in place with the chastity belt.