This will surely be unpopular here but... So enthusiastic consent doesn't work for you? I'd agree the initial contact could be considered sexual assault, if i

This will surely be unpopular here but... So enthusiastic consent doesn't work for you? I'd agree the initial contact could be considered sexual assault, if it resulted in her feeling that way. Instead she enjoyed it and wanted it to continue, and continue they did. He wanted to stop because he felt like he was crossing a line and she wanted to keep going. That's about as enthusiastic as it can get without being explicit.