Complex sentence: The story did not say Tene and Gortokai had ever met in bed together while in Suehn not until after the welcoming party of drinking, she could not wake up to have her bathe like her older sister did.
Split into simpler sentences: The story did not say Tene and Gortokai had ever slept together while in Suehn. After the welcoming party of drinking, she could not wake up to have her bath like her older sister did.