Big Bang Theory's Penny apologises to Howard as only she can.
A wild going away party for Leonard and Lucy starts it.
Bernadette develops a new drug, among other things.
Intimate couplings and Raj finds out Lucy's secret and helps.
Sheldon in 3some with Bernie and then an orgy at a party.
The girls have a contest to see who can make more tips.
Sheldon makes sure Penny's birthday goes out with a 'bang'!
Penny, Bernadette & Amy tease the guys in Disney costumes.
Valentine's Day, Everyone gets some lovin' even Alex.
Leonard & Penny hook up, so does Howard & Bernadette.
Stuart's NYE party bangs in the New Year.
Leonard bangs Alex & has 3some too. Janine has sex with all.
While guys play D & D, Raj joins the ladies for Girls night.
Bernadette & Howard's wedding brings plenty of surprises.
Penny shows up on Leonard's door step drunk.
Penny's family comes to town for the wedding.
Bernie & Howard fuck Mike & Sally. Sheldon punishes Amy.
Bernadette tries to replicate Penny's experiment.
Penny fucks her classmate. Leonard beds Alex.
Penny conducts an experiment with Sheldon.
A lucky contest winner gets to meet his dream girl.
Penny visits Leonard at work, twice. Bernie & Howard & More.
Howard & Bernie after return, Sheldon, Leonard, Penny & Amy.
Penny & Bernie, Penny & Sheldon, Penny w.Bernie and Leonard.
Bernadette drives Howard insane, Penny and Leonard try again.
Not surprising...Sheldon is an alien.
Penny with Dominant Leonard, Amy & Sheldon Star Trek.
Raj & Siri, Sheldon & Amy and Bernie surprises Howard twice.
Penny in threesome, Penny & Sheldon & Back With Leonard.
Raj beds deaf Emily and Penny; Amy get to cuddle and more.
Penny helps Bernadette.
Dinner at the Wolowitz home.
Raj dominates Penny and Amy. Penny does Sheldon and more
Leonard & Priya double team Bernie & much more; Raj & Penny.
Penny gets different jobs.
Priya gives Leonard her ass. Sheldon has Amy, Penny & Bernie
Priya with Raj and others. Penny does audition of a lifetime.
Nonstop Sex at Conference in Big Sur & Afterwards.
Zack Joins Justice League on New Year's Eve Ladies Love it.
Penny's Father Visits and Girls Have a Wild Night Out.
Leonard enjoys blind date Joy and later Priya.
Penny experiences two threesomes and a foursome and more
S.3-Ep.8. Penny slips in the shower.
Sheldon consoles Penny after breakup, Dr. Plimpton & more.
Leonard and Howard switch, Penny does Stuart, and Stan Lee.
Howard & Bernie/Penny with Sheldon & Leonard & Much More.
Raj gets Some, Penny with Howard & Leonard and much more.
Penny with Sheldon & Leonard; Raj & Howard with Goth Girls.
Penny does Sheldon & Stuart, Alicia upstairs does the rest.
Penny looks for work.
Sheldon with Beverly, Raj & Leonard with Summer Glau & More.
Penny does Dave, Doubles Leonard & Sheldon and Sheldon again.
Leonard with Dr. Stephanie Barnett and much more.
Raj and Penny hook-up, then Ramona with Sheldon and more.
Leonard hooks up with Leslie and Penny after her breakdown.
Penny takes different jobs.
Everyone gets to celebrate Leonard's surprise birthday party.
Penny helps Sheldon prepare for Amy.
Penny with Leonard & Mike; Missy & Penny w/ Raj & Leonard.
Penny in a foursome, Sheldon with Lalita & later with Penny.
Penny's Halloween Party, Howard & Christy, plus More.
Penny gets a part time job.
Penny with Doug; Leonard with Leslie and more.
Penny & Leonard's Massage Fantasy Orgy: The Final Chapter.
Penny plays with Leonard & Sheldon takes her too.
Howard's Fantasy Parodies Start Great but end up in Disaster.
Completely new series: Sheldon & Leonard meet Penny.
A surprising Valentine's Day.
Penny experiments with her friends.
Costume contest on New Year's Eve.
Taking pictures during sex with Kaley Cuoco.
Horny Amy Farrah Fowler takes matters into her own hands.
Penny, Bernadette find new fellas after breakups in Season 3.
Big Bang's Melissa Rauch feels naughty after Maxim shoot.
On the set of 'Big Bang Theory' Kaley Cuoco is getting horny.
The boys explore what's always been there
The girls slumber party turns sexy.
Penny discovers voodoo.