Mexicans girls are like Peruvians, is not proper to tell her I want a blowjob the second or third day
first days tell her :
you are very beautifull ..... Que linda eres ! Estas chulísima
que bonita sonrisa tienes ........ I like your smile
and later when you got the second appointment and avoid a sexual harrasment file, I guess these phrases arent rough.
Don't worry, I won't hurt you, I have a small dick. ... (is not sound doofus, is funny

) tengo mi pene chiquito, no te hare daño.
Your tongue feels so good, lick me all .... tu lengua esta rica lameme todo ....