Both When You Feel like Fapping and When You are Fucking

Part 1: Frigid, dark, lonely.... a man lost in the cold suddenly comes upon the cure for his ailments... a hotspring! Turns out there are some fantastic attendants there as well! Part 2: She worked her way up in the world with absolutely zero sexual or romantic experience. All it takes is a little alcohol to grease the gears and she can't contain herself! This is what years of holding back has resulted in!

Part 1: A very popular orchestral happens to have a lewd switch, and when that switch is turned on there is no turning off until she's satisfied! Part 2: A tutor for a wealthy boy ends up turning him into an A student, however he has a proposition for her for some "extracurricular activities" so that she can continue her tutoring...