Whether that be sexual abuse of slaves by their mistresses or relationships between black slaves and white women who were NOT their owners.

I know it was exceedingly common for slaveholders to rape and sire children with their female slaves, to the point where it was basically an "open secret."

Was this true of the opposite?

Obviously a white woman having relations with a black man would have been much more horrifying to society at the time than vice versa, so I imagine it was written about and acknowledged much less.

Still, I assume it must have happened sometimes, and there must be SOME record of it.