President Trump went full Salt-N-Pepa today — telling a crowd that no question is off limits … especially if it’s about getting it on!

Trump was getting ready for a Q&A segment Friday at an investment summit in Florida when he inexplicably told the crowd … “You can ask me anything you want. You can talk sex.”

POTUS says, unlike other politicians, he doesn’t screen questions beforehand … so folks at the Saudi-backed investment conference could ask “whatever question they want.”

No word if anyone took Trump up on his offer for an impromptu talk about the birds and the bees … but the prez made sure to make it clear, “I am here for you.”