Now for the most uncomfortable plot line that I can recall from the WN.
Time for the younger sister to help out.
I'm rather confused right now. What was her plan? What was HIS plan?
She gave him a dose of what is essentially viagra + paralytic. So he is currently painfully erect, and
needs to have sex. This should have prevented most guys from realizing the paralyzing portion, but he did take an antidote ahead of time.
His drinking of the antidote helped dull the poison's sting, and he did realize she was likely to try to kill him. He just wanted to see where it was going to go and also level up. If not for the level up, there was a strong possibility he would have died here.
I believe I recalled most of that correctly.