Charlie and Kate Start a Sex Study

1 Charlie Loses it at a Baby Shower 2 Charlie's Dad Starts to Lose It 3 Charlie and the Ex-Patient 4 Charlie's Dad Breaks Bad 5 Charlie & Jen Together Again 6 Charlie and Deception Therapy 7 Charlie Dates a Teacher 8 Charlie and Cee Lo 9 Charlie is an Expert Witness 10 Charlie & Catholicism 11 Charlie Dates Crazy, Sexy, Angry 12 Charlie Gets Lindsay Lohan in Trouble 13 Charlie and Lacey Piss Off the Neighborhood 14 Charlie and Kate Horse Around 15 Charlie's Patients Hook Up 16 Charlie and Kate's Dirty Pictures 17 Charlie Lets Kate Take Charge 18 Charlie and the Break-Up Coach 19 Charlie, Kate and Jen Get Romantic 20 Charlie Breaks Up With Kate 21 Charlie and His New Therapist 22 Charlie and Kate Start a Sex Study 23 Charlie and the Secret Gigolo 24 Charlie and His New Friend With Benefits 25 Charlie and the Airport Sext 26 Charlie and the Hot Nerd 27 Charlie Dates a Serial Killer's Sister 28 Charlie and the Cheating Patient 29 Charlie and the Virgin 30 Charlie and the Hit and Run 31 Charlie Kills His Ex's Sex Life 32 Charlie and the Prison Riot 33 Charlie and Kate Do It For Money 34 Charlie and the Sting 35 Charlie Gets the Party Started 36 Charlie and the Grad Student 37 Charlie's New Sex Study Partner 38 Charlie and the Sex Addict 39 Charlie and the Hooker 40 Charlie and the Devil 41 Charlie and Sean and the Battle of the Exes 42 Charlie Helps Lacey Stay Rich 43 Charlie Loses His Virginity Again 44 Charlie Does It For Science 45 Charlie and Lacey Shack Up 46 Charlie and the Christmas Hooker 47 Charlie and the Pajama Intervention 48 Charlie Sets Jordan Up with a Serial Killer 49 Charlie and the Twins 50 Charlie and Sean Fight Over a Girl 51 Charlie and The Last Temptation of Eugenio 52 Charlie and the Hot Latina 53 Charlie and His Probation Officer's Daughter 54 Charlie Gets Date Rated 55 Charlie and Jordan Go to Prison 56 Charlie and the Re-Virginized Hooker 57 Charlie Catches Jordan in the Act 58 Charlie Spends the Night With Lacey 59 Charlie Screws a Prisoner's Girlfriend 60 Charlie Cops a Feel 61 Charlie, Lacey and the Dangerous Plumber 62 Charlie and the Mother of All Sessions 63 Charlie and Sean's Twisted Sister 64 Charlie Has a Threesome 65 Charlie and the Lap Dance of Doom 66 Charlie Tests His Will Power 67 Charlie and the Psychic Therapist 68 Charlie Gets Between Sean and Jordan 69 Charlie Does Times With the Hot Warden 70 Charlie and the Warden's Dirty Secret 71 Charlie and the Temper of Doom 72 Charlie Gets Trashed 73 Charlie and the Case of the Curious Hottie 74 Charlie Pledges a Sorority Sister 75 Charlie Plays Hide and Go Cheat 76 Charlie and the Revenge of the Hot Nerd 77 Charlie and the Curse of the Flying Fist 78 Charlie and the Houseful of Hookers 79 Charlie Gets Patrick High 80 Charlie and Lacey Go For Broke 81 Charlie and the Terrible, Horrible, No Good Very Bad Thanksgiving 82 Charlie Rolls the Dice in Vegas 83 Charlie & the Return of the Danger Girl 84 Charlie Gets in Bed with Jordan's Ex 85 Charlie's Living the Dream 86 Charlie Meets His Match 87 Charlie and the Epic Relationship Fail 88 Charlie Gets Tied Up With a Catholic Girl 89 Charlie and the Sexy Swing Vote 90 Charlie & the 100th Episode