"Flotte Nummer" basically means quickie here. "Schnelle Nummer" is perhaps the more common expression. So she's saying "A quickie? Yeah, right, you fucked me for a full hour!" Other than that, I'd it's pretty accurate.

I am begging on my hands and knees for a CC focused pic some time in the future 🙏

Gar nicht schlecht! Ich denke der Markt ist klein, aber die Mühe ist es trotzdem wert.