As this season of “The Mindy Project” progresses, so does Danny and Mindy’s relationship.

The opening scene paints Danny as the ultimate romantic – offering Mindy bottomless apple pie and always remembering her nose hair trimmer. The scene also reveals the source of the episode’s name – “I Slipped” – referring to a rather awkward sexual encounter between the two of them.

The next day, Danny claims the encounter was an “accident,” but Mindy isn’t buying it. Danny insists they talk about it in her office, but Mindy replies that her office only has one entrance, which doesn’t seem to be enough for him anymore.

Meanwhile, Peter and Tamra are discussing their weekends over breakfast when Jeremy walks in, hoping to join. Tamra tells him he can’t join them and informs him that she’s #TeamPeter. Peter adds that the whole office is #TeamPeter – they have merch, a website and a mascot.

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When Morgan comes in, he tells them that he’s upset with all of them for not coming to his party for graduating from nurse practitioner school. Mindy apologizes, but says she had a date with Danny. Morgan then accuses her of saying she’d never be one of those girls who abandons their friends for their boyfriend, to which Mindy replies that she’d never say that because all she’s ever wanted is to abandon her friends for her boyfriend. Peter and Jeremy didn’t come because they both thought the other would be there. After a brief argument, Jeremy says that he doesn’t care if the whole office hates him and storms out.

Mindy confides in Peter – her “most perverted friend” – about what happened with her and Danny. She asks him if he’s ever “slipped,” and Peter immediately says no. He says that Danny is lying; no guy has ever “slipped” on accident. He proves it by asking Mindy what her most prized possession is – her signed photo of Kris Jenner – and asks if she doesn’t always know where it is and what it’s doing. Point made.

Mindy goes into Danny’s office and says that she’ll believe that it was an accident, if he swears to God that it was. Danny tries to shrug it off, but eventually admits, not that it was accident, but that his eyes are going bad and he couldn’t see what he was doing. He says that he didn’t tell her because she’s always making fun of his age, but Mindy assures him that she wouldn’t care and that if he went blind, she’d get really fat. She also insists that they go see an eye doctor.

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The eye doctor tells them that Danny’s eyes are fine, but, for different reasons, Danny and Mindy both insist that he’s wrong. The doctor soon realizes that they’re dealing with a relationship issue and leaves. At that point, Danny finally admits that he didn’t “slip.” He did it on purpose and he assumed that Mindy had done it before, referencing her “long list of companions.” This offends Mindy and she accuses him of only thinking of her as a “gorgeous, high-class prostitute.” She tells him that she refuses to be “slut-shamed in an ophthalmologist’s office,” and walks out.

Peter finds Mindy in the doctor’s lounge at the hospital – stress eating a roll of cookie dough – and confirms that he was right about Danny. Mindy tells Peter that though she “talks a big talk,” she’s actually a prude. She says she’s worried that she doesn’t have enough experience for Danny and Peter offers to help her, but warns: “[His] course is graded on a ‘curve.’”

Back at the office, Morgan walks in on Jeremy playing music by himself – being “the office pariah” gets lonely. Morgan feels bad for him and invites Jeremy to get dinner, which he happily accepts.

Later that evening, Mindy attends “Peter Prentice’s Bangin’ in Bed Booty Camp.” Using the office’s model skeleton – which Mindy assumes is her because she’s so skinny – Peter gages what Mindy has and hasn’t done in bed. Mindy is horrified by the things that Peter suggests she do with Danny and decides to let him “slip” all he wants because he’s such a good boyfriend.

Because Mindy felt bad for missing Morgan’s graduation party, she gives him a present – the photo of her and her dad from her desk – at work the next day. Morgan thanks her because it was exactly what he wanted. But Mindy has an ulterior motive. Since Morgan is now a nurse practitioner, he can prescribe medication – making him “just another drug dealer for Uncle Sam.” Mindy tells him that she’s about to do something that she can’t be awake for, but also, legally, can’t be asleep for, so he prescribes her a sedative, similar to the one he uses whenever he has to do something scary.

Later, Mindy tells Danny that since he’s such a good boyfriend, they can do things the way he likes, including drinking scotch and listening to blues music, which Mindy hates. Danny realizes what she’s doing and tells her that they don’t need “fireworks” in their relationship because they’re so comfortable around each other. And just when Mindy seems like she’s going to give up on being more adventurous for him, he compares Mindy to an “old shoe,” like what Beverly would wear. Nice one, Danny.

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While Jeremy and Morgan are having dinner, Peter shows up, making it clear that Morgan is “Parent Trapping” them – which makes him the Lindsay Lohans.  He wants Peter and Jeremy to sort out their issues over the Lauren situation, with him as a mediator. But when Mindy texts him, Morgan abandons them immediately.

Mindy tells him that the sedative isn’t working, just as it begins to work. She tells him she loves him and suggests that they vacation together, at which Morgan gushes.

Jeremy and Peter’s argument escalates when Jeremy says that he didn’t steal Lauren from Peter; Lauren left Peter. Why? Because he’s “over thirty, yet [he] has four roommates, two pairs of underpants and no toothbrush.” Peter then accuses him of being the one to convince her that those things were bad, to which Jeremy replies that Peter’s face is bad. At that, Peter throws his drink in Jeremy’s face. When Jeremy returns the favor, the candle in the center of the table goes with it, sending flames into Peter’s face.

Back at Danny’s, the sedative starts to really affect Mindy. She begins imagining that the bed is moving, eventually falls off of it and is taken to the hospital.

There, she is questioned by a detective who suspects that Danny drugged her. Mindy then reveals that she drugged herself – much to Danny’s surprise. As she’s about to explain, Morgan, Jeremy and Peter –minus two eyebrows – arrive. When Mindy asks about his absent facial hair, he and Jeremy start arguing again, but are calmed down by the others and agree to not fight anymore – at least in the office.

Once they’re alone, Danny asks Mindy why she doesn’t think she’s sexually advanced enough for him. He tells her that when he “slipped,” he was just trying something – which, they discover, neither of them had done before – and he doesn’t expect her to do anything she doesn’t want to. They agree to communicate better about the subject in the future.

The next day, Peter and Jeremy apologize to Morgan for letting their feud overshadow his graduation and give him his present: monogrammed scrubs, on which his name is spelled wrong.

The episode ends with Danny and Mindy’s “first freak, consensual adventure,” which starts with Danny putting whipped cream in his mouth before they make-out and ends with Mindy biting his tongue.

Catch “The Mindy Project” Tuesdays at 9:30/8:30c on FOX.

Reach Staff Reporter Alex Reed here.