Idk I think it's not too far fetched, he rehearsed both performances a lot and had a backup plan

I know this was last episode but I wish they would have kept Sam a virgin, for a show that's all about "the message" I think they are pretty cavalier about high schoolers having sex. I think they really missed the bar and an interesting storyline with Sam who is a total hottie choosing not to have sex until he was older/ready/in love/married whatever. Now the only dude virgins we have are Irish and Jesus guy and lets be honest they're virgins by default