Private Passions (1985)

When Mark goes to visit his cousin Toni in Austria for the summer he develops a serious crush on Tonis pretty stepsister Clair and at the same time tries to fend off Tonis efforts to get him set up with prostitutes As much as he likes Clair Mark cannot bring himself to start a sexual relationship with her and ultimately goes to Clairs mother Katherine to vent his feelings It is that meeting that ultimately sends Mark home more experienced than when he arrived