Rolling Around (Patreon)

Every time Karina agrees to help Aisha with one of her projects, she sweats up and down that she's not going to let it get out of control.  She promises her that she's going to perform the tests in moderation so that the results aren't accompanied by weeks of figuring out how to reverse the process.

...And then every time, Karina shows her eccentric wife that self-control is not even remotely her forte.