Do you know his schedule is totally full?

My therapist fit me in from 8-9am because he was all full up during normal working hours. He was happy to do that, however. People leave all the time... It could be the case that something will free up. I was terrified of asking my t for another session so I agonised for a while and put it this way:

'I know you are really busy and stuff, but I wish I could see you more'.

He managed to find for an extra session every two weeks. So kind of half way between weekly and twice weekly. I really didn't think he was going to be able to do that but turns out he could do that. And... He seemed fairly pleased that I'd asked...