In a situation where they can't make a sound, men and women have no choice but to hide under the covers, and there is only one way to communicate...sex in silence! "Suzu is invited to her boss's house for a drink, but she misses the last train and leaves...", "Sex with childhood friend in the covers", "Mischievous teasing blowjob with little nephew", "Sex with friend's boyfriend in the covers" are included in this 4-part series!