So, the chair was literally fucked?

Now we get to wonder whether those were especially wide chair rails or an especially thin dildo.

I hate it when that happens.

Maybe she keeps it back there cos she likes it dirty xD

Did you lube up the seat after for more efficient movement in the future?

Plot twist--it wasn't hers!

I can see how a dildo could keep her seat from moving backwards OR forwards, but not both. Maybe it was one of those double-ended ones?

Well, that's a bit of a cock up.

It explains why she wanted it to be able to move both forward and backward

Some questions are best left unanswered...