Hanabi pleaded Hinata to introduce her to her Kumogakure "friends". Hinata makes some excuses at first about how rude they were or something like that, but Hanabi was persistent and wouldn't stop talking about how good it would be if they got to know each other. Finally Hinata caved and made arrangements for a night with one of the Kumogakure shinobi currently visiting Konoha.
Hinata was surprised to see how eager her sister his as she quickly jerks him off, even swallowing some of his cum in the process. All this got her wet and she knows it's too late to turn back now!