BUT! I didn't collapse when I dismounted like the student before me! We are all having a great time commiserating and picking on our instructor for being a masochist. I texted her after I got home and told her that it hurt to press the pedals in my truck. She just laughed at me. She is such an apathetic person.
I think this is something I need to work on more often. I was a little disappointed in myself for being so unbalanced. My horse wasn't digging it either, he wasn't sure how to react to my lack of posture. I'd like to do some exercises that ease me into riding without stirrups that won't confuse my horse or make me feel like I'm going to sling off the saddle at any moment. Any tips?
I'm sure I will work it into my normal routine. I just need to give it a few days, maybe a week... Right now, all I can focus on is how bad my unmentionable areas hurt!