[Complete] Many idols help each other to "relax". After all, idols live very isolated from the outside world, they only have their group members and are constantly stressed. Moreover they are often made up, dressed in a sensual way and pushed to do "fan service", flirting with members for their fans. It's perfectly logical that they help each other in everything, literally in everything. «Hyung, you know you work better after an orgasm.» «Since when are you so explicit?» But, you know, it is not easy for everyone to keep sex separate from feelings.