What would Kourtney say? The night Scott Disick hightailed it out of rehab in Costa Rica, Kardashian's baby daddy also allegedly tried to lock down another girl's digits!

According to Britain's Heat magazine, Disick hit up Rouge and Vertigo nightclubs on March 21 and then continued the party at the Sheraton hotel, where he was allegedly "seen boozing."

The wild child reality star seemed to be having a good time, "flirting with fans," according to reports.