Nope.
In Hamburg I met a girl that offered her services. She was very sympathic and very pretty - I was thinking hard if I should stay a bit with her - I found out that I respected her as a person. And in this case I had doubts to "buy" her.
I thought, perhaps I should ask her for massaging my back or so, for mainly having a nice talk with her - but because I needed a shower (a question of respect also) I finally said no.
I prefer having a G/F with these qualities.

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If every material thing is gone, my smile and my tears stay left.