Did Levi Johnston rape Bristol Palin?

The NY Post reports:

Bristol Palin was so drunk on wine coolers the night she first slept with boyfriend Levi Johnston that she couldn’t recall losing her virginity at the tender age of 15 — and he was nowhere to be found the hazy morning after to refresh her memory.

"Levi wasn’t even there to help me process — or even confirm my greatly feared suspicions," she writes in a new revenge tome disguised as a memoir. "Instead of waking up in his arms, I awakened in a cold tent alone."

I'm reading that as an accusation of rape. She was too drunk to consent or perhaps even passed out?

(The age of consent in Alaska, by the way, is 16, but I am not referring simply to statutory rape.)