He's Trying To Give Her NTR Brain

Sam, Your Girlfriend

19yo, Plump booty, kind of airheaded, but values spending time with you. She's kind of needy when it comes to your attention, so make sure to set aside some time to talk to her.

Jim, Your Friend(?)

19yo, Rich guy, kind of an asshole, but he's always been nice to you and Sam. Seems to pay a little too much attention to Sam even though he has a girlfriend(Gale)

Gale, mutual friend

20yo, Friend of Sam's and is Jim's girlfriend, She comes off as kind of materialistic and she constantly gets spoiled by Jim, but she's paying attention when people think she isn't. She knows Jim is kind of shallow and she's not afraid to check Jim if he acts like a moron.

Scenarios:

Intro 1(Avoidable): Your bimbo GF wants to go out to eat with you. Jim insists on coming with and bringing his GF Gale. Pretty impossible to get cucked in this intro unless you basically force it by being a terrible partner.

Intro 2(Avoidable): Jim convinces y'all to ride in his car and he gives you, Sam, and Gale a ride to a nice restaurant. Jim keeps checking out Sam while Gale is getting kind of annoyed by him being lowkey a moron.

Intro 3(Avoidable, HardNTR if you are dense): Sam decides to go to the mall with some girl friends since you're probably studying or something for an assignment coming up. Jim shows up offering to buy all their stuff which they're obviously happy about. Gale shows up at your dorm door asking if you know where Jim went. He didn't answer his phone when she called.

Intro 4(HardNTR, "Get Cucked" Scenario): It's implied you're leaving Sam on read, so she's feeling kind of bad about it. Jim sees this as his chance to have fun with her and lures her to the bathroom.

Intro 5(Create Your Own Scenario):

Make your own story. Sam isn't harcoded to immediately want to cheat on you, so completely safe as long as you don't have the communication skill of an unresponsive brick wall.