hmmm you working undercover???
I wasn't even working under towel.
While I was getting my bj, I heard mamasan talking to the guys and she said "one girl available, one busy, 10 minutes" (that was me who was, ahem, busy).
One guy said to the other "you go in I'll wait"
The mamasan smelled a rat as she brought the guy into the booth (solid walls but not up to ceiling and solid door) she said "keep your underwear on".
So I finished, got dressed and as I saw the other guy waiting.
Looked like cop, maybe 30's, muscular build in tee shirt and jeans. Had almost a crew cut - like what we used to call a military haircut.
I assume after they strengthened up my booth he went in it.
Heard on news (and next day in ND) that place was busted for prostitution. Time given for the bust was within the hour after I left.
There was a hairstylist place next door and guy (owner I assume) gave me a look that could kill as I walked past the place into the spa.