Awkward wank offer...

So the wife and I took a few days holiday and we decided to get a foot massage... all was going well right until the moment the masseuse thought it was a good idea to offer me a “happy ending”.
At first we thought she was joking... not so much. Unsure what to do during the awkward silence, after declining, everything continues as normal with the foot massage as though nothing happened.

EDIT: to those not believing the story, I don’t know what else to say. Sorry.
To those who responded- Cabo San Lucas in Baja-México/California on Blvd. Paseo de la Marina.
My wife just started a nervous laugh, then stopped when realising it was a legit offer.