This would probably make most sense to happen while Matt's in college, but I don't have any preferences for timeline. Matt is being raped by someone he brought home from a bar/party. He's either too drunk or too drugged to fight back effectively, but not so affected that he's unconscious. Then, he hears someone he knows and trusts--Foggy, Elektra, Karen, Frank, whoever--outside the door looking for him. Matt plays up his protests, calls for help, and generally makes it clear that he is not consenting to what is happening. But the person doesn't help: they just stand there outside the door, listening and maybe watching, never knowing that Matt can hear them getting off on what's happening. Eventually, as things start to wind down, they leave, and come back when Matt is alone to offer him their help. Matt is torn between rejecting their help and their friendship because of their betrayal and just letting them play their charade and help, because in that moment he needs nothing more than a friend.
Matt/Any + Any: Non-con, voyeurism
This would probably make most sense to happen while Matt's in college, but I don't have any preferences for timeline. Matt is being raped by someone he brought home from a bar/party. He's either too drunk or too drugged to fight back effectively, but not so affected that he's unconscious. Then, he hears someone he knows and trusts--Foggy, Elektra, Karen, Frank, whoever--outside the door looking for him. Matt plays up his protests, calls for help, and generally makes it clear that he is not consenting to what is happening. But the person doesn't help: they just stand there outside the door, listening and maybe watching, never knowing that Matt can hear them getting off on what's happening. Eventually, as things start to wind down, they leave, and come back when Matt is alone to offer him their help. Matt is torn between rejecting their help and their friendship because of their betrayal and just letting them play their charade and help, because in that moment he needs nothing more than a friend.