He speeds things up.

Fully bimbos Brianna and makes Nora the ultimate lesbian slut

Now Thawne could wait for the changes of time trickling to reach the twins, see what his machinations of time caused.

Alas he wasn’t feeling the most patient, so wielding his new powers to the absolute limit he grabbed the temporal paths of the twins in front of him.

And twisted.

Over twenty-three years of their history warped in a fraction of a second, gone were selfless daughters of the Flash.

Replaced