Source : Webster's Revised Unabridged Dictionary (1913)

Titillate \Tit"il*late\, v. t. & i. [imp. & p. p. {Titillated};
   p. pr. & vb. n. {Titillating}.] [L. titillatus, p. p. of
   titillare.]
   To tickle; as, to titillate the nose with a feather.

         The pungent grains of titillating dust.  --Pope.

Source : WordNet®

titillating
     adj 1: pleasantly and superficially exciting
     2: giving sexual pleasure; sexually arousing [syn: {erotic}]
     3: exciting by touching lightly so as to cause laughter or
        twitching movements [syn: {tickling}, {tingling}]