R. Kelly's ongoing criminal case and assortment of legal issues aren't stopping him from getting action ... at least according to several callers who want it to be known.
Sources close to the case tell TMZ ... the hotline Kim Foxx set up in January for the Cook County State's Attorney's Office -- so alleged Kelly victims could report their claims -- is being exploited by folks who want to report something else -- their sexual experiences with him.
We're told the hotline has gotten dozens of calls from mostly women, who phone in to inform prosecutors they slept with Kelly ... with some bragging about it or detailing multiple trysts.
Our sources say some men called in as well ... to gossip about women they know that allegedly banged Kelly.
We're told the volume of calls coming in from people with R. Kelly sex stories has been staggering to some involved with the case, but at the end of the day ... they are irrelevant.
Obviously, a person can have lots of consensual sex and still be guilty of sexual assault charges. Still, it's just another strange and unexpected aspect of Kelly's ongoing legal drama.
As we reported ... he just avoided another trip to jail by ponying up the back child support he owed his ex-wife Wednesday, and he's getting a do-over in a sexual abuse lawsuit he initially lost by not responding.
Of course, all of this is going down as he waits to stand trial on 10 counts of aggravated criminal sexual abuse involving underage girls.
We reached out to the State's Attorney's Office and Kelly's lawyer, Steven Greenberg ... both declined to comment.