Jalen Rose -- EVERYONE in College Has Orgies ... Not Just Athletes

If you weren't having wild hardcore orgies in college, you were really missing out, 'cause Jalen Rose tells TMZ Sports ... group sex isn't just for athletes, everyone's doing it.

Jalen -- who played college ball at Michigan -- clearly acknowledged what we already reported ... that college athletes across the country often team up to bang chicks.

But Rose also explained, "College athletes do exactly the same stuff college students are doing."