Due to an upcoming business trip, I have to skip a session and can't reschedule for that entire week.

I feel like I'm really starting to dig deep with my T and make some good insights. I've read that some of you have done longer sessions - mine are normally 45 minutes, so a double session would be 90 minutes. I'm planning to ask my T next week if she thinks it would be a good idea for me to schedule a double session when I'm back from my trip, but I'd love your feedback. What do you think are the pros and cons to having a double session, especially after skipping a week?