http://www.cnbc.com/2016/09/26/vote-who-won-the-first-presidential-debate.html

If a flirty, horny person is hanging around a bunch of flirty, horny people open to or looking for sexual contact, don't they grab each other's genitals?
"Can I masturbate you or pleasure you further?" is the meaning of the gesture.
"A real estate CEO with skyscrapers in Manhattan wants to masturbate me? Go right ahead, I'm flattered."