Spider-boobs - 26 (Patreon)

But how to get up on your feet now, Cathy thought. Since her huge big firm tits weigh maybe two tons, it's hard to get up without help. Even for Spider-Cathy. 
But she had an idea: "I could use the inertia and try to roll backward."
So she pushed off with her legs as hard as she could and continued through the handstand.
But during that maneuver, she failed to notice one minor detail...
Okay, not that minor... 👀