(Part 1) Justin and Candace announce they are going to start dating. Brett, Leslie and even Burski have significant others now, while Shelly hooks up with an extremely tall woman at the bar. Justin makes fun of Danny being the only member of the group who is now alone. Danny retaliates by suggesting Candace has more to lose if she and Justin break up, because Justin will still have all his friends. This causes Candace to back away from Justin and rethink their situation.

The gang learns that Burski only landed his current date by pretending to be blind. As Danny did with Justin, Leslie sabotages Burski's relationship by flashing her breasts, which reveals Burski can see just fine. She later apologizes, telling Burski his constant attention to her looks makes her feel good about herself, and that seeing him with another woman made her a bit jealous. Burski insists any woman he is with right now is only practice for the day when he will win Leslie's affection. Meanwhile, Danny sort of apologizes to Justin for breaking up Candace and him, and helps push the two back together.

Candace's dog is accused of fathering a litter of puppies, and she is being pressured to pay $1,200 in "puppy support". Justin vows to get DNA from a puppy to prove Candace's dog is not the father, only to learn the owner of the mom dog is a large, scary man who runs a home for recently released prisoners. Elsewhere, Burski and Leslie have differing views on what their kiss in the previous episode might have meant, while Shelly announces he's hosting a holiday party only to find that all of his friends are heading somewhere else.

Danny is faced with a tough decision when Leslie's ex-husband visits unexpectedly; Shelly makes a vow.

Justin and Danny cannot agree on how to deal with an irritating neighbor; the guys try to get on Sabrina's good side.

The guys help Justin pay off his loans for the bar but then overstep their boundaries when they start making business decisions; Leslie blows Shelly and Brett's cover when they ditch Burski.

Danny and Justin try to win over a backup singer in town for a music festival.

Candace tries to win a free house in a contest run by Leslie. Shelly urges Brett to come out to his friends in London.

When confident slacker Danny Burton takes Justin on as a roommate, Danny unwittingly inherits Justin's group of romantically challenged friends. Seeing himself as the ultimate player, Danny decides to teach them everything he knows about "the game of love."

When Danny sends Nicki a message on Justin's behalf, it forces Justin out of his comfort zone and into action. Meanwhile, the group questions Danny's role with Justin and in the group.

Justin and Danny's relationship is put to the test when Nicki reveals she has feelings for Danny. Elsewhere, Leslie insults Detroit not realizing how deeply it would affect Shelly.

Danny discovers that he's "in like" with a girl, Sabrina, for the first time. To guide Danny, Justin, having had success with Nicki, turns cocky and tries to give him advice on how to act. Meanwhile, Brett and the gang mess with Justin so he becomes more comfortable with Brett's sexuality.

Justin expresses his feelings for Nicki but doesn't get the reaction he expected. Danny tries to help but realizes his advice is wrong. Meanwhile, things get awkward between Burski and Leslie.

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When Justin and Danny compete for a woman's attention the outcome is surprising.

The gang tries to decide if Justin or Danny is the bigger jerk; a new bartender struggles.

Candace's friends are not impressed by her boyfriend; Shelly gives Brett kissing lessons.

Justin tries to act cool when Nicki returns and announces that she is engaged.

Danny tells Justin he has been overcharging him for rent; Brett helps Candace keep a stray puppy.

Danny wants to make a career move to prove to Justin that he's not a loser.

Justin steps up when Leslie needs someone to go with her to a work event.

Danny tries to help when Justin makes an embarrassing mistake in front of his girlfriend's father.

Danny is distraught and confused when Charlotte rates him only a 6 out of 10 in the bedroom. After Charlotte explains that Danny is great at sex but not so good at "making love", Justin resolves to teach his friend about intimacy. Meanwhile, Candace gets advice from both Charlotte and Leslie on how to act sexier for Justin.

Danny and Justin face-off after Justin has the Backstreet Boys help him with a surprise. Meanwhile, the gang teams up to help Candace get something back from her ex-boyfriend, Trent.

Danny thinks Brett is ready to ask a guy out and convinces him to do so against Justin's better judgment. Meanwhile, Leslie and Sabrina give Justin tips on how to be romantic.