I was eating my ex-GF with my usual enthusiasm when she started lifting her butt off the bed from all the stimulation. I supported her back while I kept muffin diving, just like any decent BF would do.
Then she started pushing herself off the bed with her arms, forcing me to rise up to maintain stability. Then she put her legs over my shoulders, and I kept rising up even higher!
Pretty soon, I was almost standing on the bed, and my GF was doing an almost vertical handstand! And I was STILL going at it, not wanting to break the momentum!
As she was starting to go through her multiple orgasms and losing her balance, I started to lower ourselves back on the bed so that she wouldn't be in the air when the final big orgasm hit her and she would have to forcibly push me away to make me stop (I really love good pussy).
It was a great sight having her almost upside-down, looking down at her inverted breasts while her body was thrashing away. Luckily she was a very light and petite woman otherwise my back probably would not have survived the strain!