A comprehensive index of all the information on the JackinWorld site. If you can't find what you're looking for, try another heading — your topic may have been indexed some other way.

     Specific info:
    Abrasions from masturbating (Q&A3 Q's)
    Angle when erect, extreme (Q&A)
    Blister from masturbating (Q&A)
    Bumps or pimples on skin (Q&A — 3 Q's)
    Circumcision
    Cleanliness of penis (Q&A)
    Curvature to one side (Q&A)
    Curvature — readers' (Survey #3)
    Curvature upward (Q&A)
    Curvature upward or downward (Q&A)
    Desensitizing with too much stimulation (Q&A)
    Desensitizing with vibration (Q&A)
    Head — shrinking after ejaculation (Q&A)
    Inserting object into urethra — unsafe! (Q&A)
    Large, what it's like to have one (Library)
    Muscles contracting involuntarily (Q&A)
    Pumps — what are they, and are they safe? (Q&A)
    Sensitivity and rough technique (Q&A)
    Sensitivity loss over time (Q&A — 2 Q's)
    Size (Library)
    Size and body weight — related? (Q&A)
    Size, and masturbation (How-To)
    Size, affected by masturbation — myth (Q&A)
    Size, average — are JackinWorld surveys accurate? (Q&A)
    Size, average — by age (Survey #2)
    Size, average — by age (Survey #3)
    Size, average — by age (Puberty Survey)
    Size, average — circumference (Q&A)
    Size, average — flaccid or soft (Q&A)
    Size, decreasing over time (Q&A)
    Size, increasing (Q&A — 4 Q's)
    Size, masturbation affecting size — myth (Q&A)
    Size, measuring (Q&A)
    Size, smaller than average (Q&A)
    Size, time of puberty onset affecting size (Q&A)
    Size, too large (Q&A — 2 Q's)
    Size, weight training affecting size — myth (Q&A)
    Skin — bumps (Q&A)
    Skin — dry (Q&A)
    Skin — sore from masturbating (Q&A — 2 Q's)
    Skin — tender and stinging (Q&A)

Phone Sex
    A former operator's story (Library)

Pornography
    See also Visual Stimulation
    Addiction to pornography (Q&A)
    Purchase by underage people (Q&A)
    Usage by JackinWorld readers (Survey #2)

Positions For Masturbation
    Grips — four basic types (How-To)
    Face-down, rubbing against mattress (Q&A — 2 Q's)
    Readers' preferences (Preferences & Practices Survey)

"Pre-cum"
    See Cowper's Gland Secretion

Privacy
    For masturbation (Q&A)
    Masturbating when someone else is in the room (How-To)
    Readers' and masturbation "danger" (Preferences & Practices Survey)

Prostate
    Prostate health & "Stop & Go" technique (Q&A)
    Prostate surgery and masturbation (Library)

Puberty
    Puberty cartoon (Library)
    Puberty Survey (Library)

Public Masturbation
    Is it bad to want to masturbate in public? (Q&A)

Quitting Masturbation
    See also Abstaining
    Quitting (Q&A — 2 Q's)

Race
    Masturbation frequency by race (Survey #3)
    Race and masturbation (Q&A)

Relationships
    Also see Females
    Masturbating while in a relationship, readers' feelings about, and practices (Survey 2000)

Relatives, Male
    See Brothers / Cousins
    See Fathers
    and Males, Other

Religion
    Getting in the way of masturbating (Q&A)
    Links to articles & resources (Library)
    Masturbating at Bible school (Q&A)
    Objections to masturbating (Q&A)
    Readers' religions (Survey #3)

Safety of Masturbation
    General info (How-To)
    How to masturbate safely (Library)

Scrotum
    Hair on scrotum (Q&A)
    Hard vs. soft (Q&A — 2 Q's)

Semen
    See also Ejaculation

    General info:
    Semen production & ejaculation (Science Corner)
    Questions about semen & ejaculation (Q&A)

    Specific info:
    Appearance — masturbation vs. nocturnal emission (Q&A)
    Appearance — milky vs. clear (Q&A — 4 Q's)
    Appearance — normal color (Q&A)
    Aversion to "making a mess" (Q&A)
    Bath/shower — do sperm live in water? (Q&A)
    Calories in an ejaculation (Q&A)
    Disposal (Q&A — 2 Q's)
    Eating (How-To)
    Eating — how to do it (Q&A)
    Eating — safe? (Q&A — 2 Q's)
    Getting on underwear — embarrassing (Q&A)
    Girlfriend disgusted by semen (Q&A)
    "Holding in" semen (dangerous) (Q&A)
    Longevity of sperm cells (Q&A)
    Lumpy consistency (Q&A)
    Quantity and excitement duration (Q&A)
    Quantity — average (Q&A)
    Quantity — increasing by delaying orgasm (Q&A)
    Quantity — increasing by not masturbating (Q&A — 2 Q's)
    Quantity — related to penis or testicle size? (Q&A)
    "Shooting" vs. "dribbling" (Q&A)
    Smell (Q&A)
    Smell — can people tell when you've masturbated? (Q&A — 2 Q's)
    Smell — like bleach (Q&A)
    Smell — like urine (Q&A)
    Thin and stringy, from malnutrition (Q&A)

Sensitivity
    Losing from masturbating (Q&A)
    Readers' penis sensitivity while masturbating (Preferences & Practices Survey)

Sex Drive
    Low — is it normal? (Q&A)

Sex Education
    Elders, Dr. Joycelyn's stance on sex-ed (Q&A)

Sex Tolerance
    Reduced by masturbating — myth (Q&A)

Sex Toys
    Are they only for "perverts"? (Q&A — 2 Q's)
    Masturbating machines (Q&A)

Sexual Orientation
    See also Homosexuality
    Readers' (Preferences & Practices Survey)
    Readers' (Survey #2)
    Readers' (Survey 2000)

Sexual Response
    Stages of sexual response & physiology of orgasm (Science Corner)

Shaving Pubic Hair
    Is it okay? (Q&A)

Shower
    Masturbating in shower, readers' habits (Survey 2000)

Sister
    See also Females
    Being teased by sister about masturbation (Q&A)

Skin
    Red splotches on chest after masturbating (Q&A)

Sleep
    Masturbating while asleep (Q&A)

Speed
    Fast vs. slow strokes (How-To)
    Inability to masturbate slowly (Q&A)
    Readers' preferences (Preferences & Practices Survey)
    Slowing down to prolong pleasure (How-To)

Sperm Count
    See also Semen
    Reduction from masturbating — myth (Q&A)
    Underwear / boxers vs. briefs (Q&A — 2 Q's)

Sucking Your Own Penis
    See Auto-Fellatio

Talking About Masturbation
    Fathers and sons: opening communication lines (Library)
    Who readers discuss masturbation with (Survey 2000)

Teaching Masturbation
    Readers' experiences (Survey #2)
    Teaching son (Q&A — 2 Q's)

Teasing
    Being teased because you masturbate (Q&A)

Techniques
    How many used by readers (Survey 2000)

Testicles
    Hair on (scrotum) (Q&A)
    Having only one testicle (Q&A)
    Hurting, when you don't masturbate for a while (Q&A)
    Popping inside body during masturbation (Q&A)
    Rubbing while masturbating (How-To)
    Size, average — by age (Puberty Survey)
    Size (Q&A)
    Structure and function (Library)

Thighs
    Red and itchy near genitals (Q&A)

Underwear
    Boxers vs. briefs and penis size (Q&A)
    Boxers vs. briefs — reader preferences (Puberty Survey)

Urinating
    Instead of ejaculating (Q&A)
    Instead of ejaculating, from "Rosy Palm" technique (Q&A)
    Urge to urinate after ejaculating (Q&A — 2 Q's)

Vagina
    See also Masturbating with household objects (Q of Week)
    Simulating feel of vagina (Q of Week)
    Simulating feel of vagina (Q&A — 2 Q's)

Videotaping Oneself Masturbating
    Is it okay to do? (Q&A)

Vision
    Affected by masturbation — myth (Q&A)

Visual Stimulation
    Effect of masturbating to pictures of men (Q&A)
    Readers' preferences while masturbating (Preferences & Practices Survey)

Watching someone masturbate
    See Voyeurism

Weakness
    Feeling weak after masturbating (Q&A)

Weightlifting
    Does masturbation rob body of protein? (Q&A)

Weight Looss
    Does masturbation cause you to lose weight? (Q&A)

Wet-Dreams
    See Nocturnal Emissions

Women
    See Females