Xavier slowly unfastened the buttons on Elena's top pajama. He could see her chest heave up and down. While doing that, he could feel her skin when his fingers brushed on her chest, and then her stomach. It felt so smooth, so supple.
Elena closed her eyes. She was so embarrassed that her brother-in-law was undressing her with the intention to fuck her.
Deep inside she told herself it was too late. He already saw her naked anyway when he changed her nightgown into this pajama. She spilled the juice on herself, he cleaned her up and changed her clothes. So, he must have seen her naked. And still, he acted as if nothing happened. He didn't make her feel awkward or embarrassed.
So, Elena hoped that after they slept together, she could get what she needed from him, and Xavier would continue to pretend that nothing happened. She and he could forget about it and continue their lives.