A girl in stockings after champagne opens her mouth for a Russian blowjob

As the saying goes, no good deed goes unpunished. So this guy helped a classmate with the exam, and for this she agreed to keep him company, and after learning that a friend has a birthday today, for the first time she sucked the end and even had sex in her mouth quite professionally ... Do you think this is her first blowjob or thirty-first in the past month ?!