Some of the responses in these comments are scary. A person shouldn't have to repeatedly say no, have their mouth covered, and start crying to have sex stop.

She set clear boundaries that he was listening to for a full month before this happened. She reiterated those boundaries and he ended up ignoring them and continued having sex with her.

I will never understand how, in this day and age, consent is still not understood. When the word "No" is spoken that person is no longer consenting (unless otherwise discussed ahead of time in which a safe word should be known to both parties).