A Waterfall
When someone asks for a drink you already licked and you pour it into their mouth like it's a waterfall and they're the luckiest person alive.
He asked for a drink I already licked and poured it into his mouth like it was a waterfall.
She wanted a sip of my drink and I poured it into her mouth like it was a gift from the gods.
He said, 'Can I have a sip?' and I poured the whole thing into his mouth like he was a waterfall.