I'm just tryna be inside you 'fore you wake up
As strange as it is, Kanye wants to have sex with his girl before she awakes.
It’s also an interesting play on words:
He’s slipped inside the apartment, slipped into the bed, thus he’s ‘inside’ and ‘in the bed beside’, all while she’s asleep, so before she wakes up. So:
Inside the apartment, at her side while she sleeps, so you could view the line as tryna be in, ‘side you 'fore you wake-up.
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