Larsa Pippen Tells Andy Cohen She's Just Friends with Marcus Jordan

Larsa Pippen is sticking to her story, insisting to Andy Cohen she and Michael Jordan's son are just friends ... even as he sat just a few feet away from her on Andy's show.

The reality star played coy to the max on Monday night on 'Watch What Happens Live' -- where Marcus Jordan was in the audience ... for moral support, we're sure. 😉

Of course, Andy tried to grill her, asking Larsa what her ex, NBA Hall of Famer Scottie Pippen, thinks about her dating his nemesis' son.

Larsa totally tried to downplay it, telling Andy she has no idea what Scottie thinks about it, and says they've never discussed Marcus.

While she understands why people might have questions -- their 17-year age gap and the fact Marcus was a kid when Scottie and MJ were Chicago Bulls teammates -- Larsa says their families were never tight.

As we've reported ... Marcus and Larsa have been hanging out in public since September, often showing PDA around Miami, and looking every bit like a couple. Hell, the guy even flew to NY with her for Andy's show!