As long as you don't have a wife or girlfriend to 'answer' to, or no one else looks at your phone but you, for the most part, you should be OK. What would help is to clear your history after you've visited escort and porn sites, BEFORE going back to FB.
What I try to get out of the habit of doing is using my phone for BP and this site. It might take some 'splainin' if you loan your phone to someone and they go to the internet and hit E or B and predictive text start kicking in.
Not that big of a deal if you keep your phone locked, though....or if you're single.