Penny and Raj bring Sheldon out into the World of Sex.
On the set of 'Big Bang Theory' Kaley Cuoco is getting horny.
Completely new series: Sheldon & Leonard meet Penny.
The girls slumber party turns sexy.
Penny experiments with her friends.
Penny in a jam.
Penny gets a movie role
The Best Friend Experimentation.
Big Bang's Melissa Rauch feels naughty after Maxim shoot.
Round two with Kaley Cuoco in Los Angeles.
Costume contest on New Year's Eve.
Penny helps Sheldon prepare for Amy.
Penny discovers voodoo.
A surprising Valentine's Day.
Taking pictures during sex with Kaley Cuoco.
One night with Kaley Cuoco (and Penny).
Bernadette develops a new drug, among other things.
Penny takes different jobs.
Penny shows up on Leonard's door step drunk.
Penny gets a part time job.
Sheldon's twin sister Missy comes to visit.
The boys explore what's always been there
Penny plays with Leonard & Sheldon takes her too.
Penny, Bernadette find new fellas after breakups in Season 3.
The girls have a contest to see who can make more tips.
S.3-Ep.8. Penny slips in the shower.
Penny conducts an experiment with Sheldon.
Bernadette tries to replicate Penny's experiment.
Horny Amy Farrah Fowler takes matters into her own hands.
Penny experiences two threesomes and a foursome and more
Priya gives Leonard her ass. Sheldon has Amy, Penny & Bernie
Penny in a foursome, Sheldon with Lalita & later with Penny.
Spreading the joy.
Penny's Halloween Party, Howard & Christy, plus More.
Penny marries Leonard.
Priya with Raj and others. Penny does audition of a lifetime.
Leonard & Priya double team Bernie & much more; Raj & Penny.
Penny with Doug; Leonard with Leslie and more.
Uncle Mark visits while Howard is out of town.
Raj dominates Penny and Amy. Penny does Sheldon and more
Bernadette convinces the board to promote her.
Things start to heat up.
Raj and Penny hook-up, then Ramona with Sheldon and more.
A lucky contest winner gets to meet his dream girl.
Penny has some fun at Howard's expense.
Penny helps Bernadette.
Penny lands a part.
Penny does Sheldon & Stuart, Alicia upstairs does the rest.
Penny's Father Visits and Girls Have a Wild Night Out.
Dinner at the Wolowitz home.
Bernadette & Howard's wedding brings plenty of surprises.
Penny put up her only asset to lease Apt 4B.
Penny gets different jobs.
Stuart's NYE party bangs in the New Year.
Penny looks for work.
Sheldon consoles Penny after breakup, Dr. Plimpton & more.
Nonstop Sex at Conference in Big Sur & Afterwards.
Howard & Bernie/Penny with Sheldon & Leonard & Much More.
Melissa wants to remake a famous porn flick.
Penny & Leonard's Massage Fantasy Orgy: The Final Chapter.
Leonard hooks up with Leslie and Penny after her breakdown.
Penny with Leonard & Mike; Missy & Penny w/ Raj & Leonard.
Everyone gets to celebrate Leonard's surprise birthday party.
Leonard and Howard switch, Penny does Stuart, and Stan Lee.
Penny's family comes to town for the wedding.
Big Bang gang decorates the Christmas tree.
Howard leaves and asks Raj to take care Bernadette.
Leonard with Dr. Stephanie Barnett and much more.
Raj gets Some, Penny with Howard & Leonard and much more.
Penny does Dave, Doubles Leonard & Sheldon and Sheldon again.
Penny in threesome, Penny & Sheldon & Back With Leonard.
Bert gets Amy's Ass, Penny is gangbanged & shares Leonard.
Penny & Bernie, Penny & Sheldon, Penny w.Bernie and Leonard.
Sheldon makes sure Penny's birthday goes out with a 'bang'!
Penny with Sheldon & Leonard; Raj & Howard with Goth Girls.
Everyone has sex, just not with their partners.
Sheldon with Beverly, Raj & Leonard with Summer Glau & More.
Raj beds deaf Emily and Penny; Amy get to cuddle and more.
Penny fucks her classmate. Leonard beds Alex.
Howard's Fantasy Parodies Start Great but end up in Disaster.
Penny's first Halloween party in 4B.
Sheldon in 3some with Bernie and then an orgy at a party.
Penny attends high school reunion.
Drunk sex to friends with benefits.
Leonard bangs Alex & has 3some too. Janine has sex with all.
Zack Joins Justice League on New Year's Eve Ladies Love it.
Leonard enjoys blind date Joy and later Priya.
Penny visits Leonard at work, twice. Bernie & Howard & More.
Penny with Dominant Leonard, Amy & Sheldon Star Trek.
Bernadette drives Howard insane, Penny and Leonard try again.
Big Bang Theory's Penny apologises to Howard as only she can.
While guys play D & D, Raj joins the ladies for Girls night.
Penny, Bernadette & Amy tease the guys in Disney costumes.
The seed is planted for Bernie's website.
Leonard Bangs Mrs. Latham.
Penny surprised Leonard. Will he get his fantasy come true?
Penny finally sees the light. Girl's night gets steamy.
Raj visits Uncle Mark and Bernadette.
Penny gets to meet Howard's Uncle Mark.
Leonard fucks Penny again & again after reading Bev's book.