now now, young man. have we been participating in any illegal activities today? like any good sex therapist will tell you, the most effective form of contraception is abstinence. perhaps you should do away with such activities that get you into trouble in the future and we wouldn't have to worry now would we. alllllllrighty then.
That is what i do but i just use a Toilet Paper Roll stuffed with dryer sheets.
my mom came in my room saying it smelled good :)